Background and technical introduction

Experiments with ultracold metastable helium atoms

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issn0028-0836, 1476-4687
titleHelium in the Eroding Atmosphere of an Exoplanet

journaltitleNature Communication
titleA general derivation and quantification of the third law of thermodynamics

journaltitlePhilosophical Magazine
titleOn the constitution of atoms and molecules

titleThe Effect of Magnetisation on the Nature of Light Emitted by a Substance

journaltitleAmerican Journal of Science
titleOn the relative motion of the Earth and the luminiferous ether

journaltitleProceedings of the Royal Society A
titleThe quantum theory of the electron

American Physical Society

journaltitlePhys. Rev.
titleFine Structure of the Hydrogen Atom by a Microwave Method

American Physical Society

journaltitlePhys. Rev.
titleFine Structure of the Hydrogen Atom. Part I

American Physical Society

journaltitlePhys. Rev.
titleThe Electromagnetic Shift of Energy Levels

American Physical Society

journaltitlePhys. Rev. D
titleTenth-order electron anomalous magnetic moment: Contribution of diagrams without closed lepton loops

American Physical Society

journaltitlePhys. Rev. Lett.
titleNew Measurement of the Electron Magnetic Moment and the Fine Structure Constant
noteSee, e.g., the CODATA recommended values

journaltitleJournal of Physical and Chemical Reference Data
titleCODATA Recommended Values of the Fundamental Physical Constants: 2018

American Association for the Advancement of Science

abstractThe discrepancy between the size of the proton extracted from the spectroscopy of muonic hydrogen and the value obtained by averaging previous results for “regular” hydrogen has puzzled physicists for the past 7 years. Now, Beyer et al. shed light on this puzzle (see the Perspective by Vassen). The authors obtained the size of the proton using very accurate spectroscopic measurements of regular hydrogen. Unexpectedly, this value was inconsistent with the average value of previous measurements of the same type. Also unexpectedly, it was consistent with the size extracted from the muonic hydrogen experiments. Resolving the puzzle must now include trying to understand how the old results relate to the new, as well as reexamining the sources of systematic errors in all experiments.Science, this issue p. 79; see also p. 39At the core of the “proton radius puzzle” is a four–standard deviation discrepancy between the proton root-mean-square charge radii (rp) determined from the regular hydrogen (H) and the muonic hydrogen (µp) atoms. Using a cryogenic beam of H atoms, we measured the 2S-4P transition frequency in H, yielding the values of the Rydberg constant R$\infty$ = 10973731.568076(96) per meterand rp = 0.8335(95) femtometer. Our rp value is 3.3 combined standard deviations smaller than the previous H world data, but in good agreement with the µp value. We motivate an asymmetric fit function, which eliminates line shifts from quantum interference of neighboring atomic resonances.
titleThe Rydberg constant and proton size from atomic hydrogen

American Association for the Advancement of Science

abstractThe discrepancy between the proton size deduced from the Lamb shift in muonic hydrogen and the average, textbook value based on regular (electronic) hydrogen has puzzled physicists for nearly a decade. One possible resolution could be that electrons interact with protons in a different way than muons do, which would require “new physics.” Bezginov et al. measured the Lamb shift in electronic hydrogen, which allowed for a direct comparison to the Lamb shift measured in muonic hydrogen. The two results agreed, but the discrepancy with the averaged value remains.Science, this issue p. 1007The surprising discrepancy between results from different methods for measuring the proton charge radius is referred to as the proton radius puzzle. In particular, measurements using electrons seem to lead to a different radius compared with those using muons. Here, a direct measurement of the n = 2 Lamb shift of atomic hydrogen is presented. Our measurement determines the proton radius to be rp = 0.833 femtometers, with an uncertainty of ±0.010 femtometers. This electron-based measurement of rp agrees with that obtained from the analogous muon-based Lamb shift measurement but is not consistent with the larger radius that was obtained from the averaging of previous electron-based measurements.
titleA measurement of the atomic hydrogen Lamb shift and the proton charge radius

American Physical Society

journaltitlePhys. Rev. Lett.
titleMeasurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm

titleTest of lepton universality in beauty-quark decays

titleMeasuring the $\alpha$-particle charge radius with muonic helium-4 ions

IOP Publishing

journaltitleThe astrophysical journal supplement
titleA multiplet table for neutral helium ($^4$He I) with transition rates

titleViscosity of Liquid Helium below the $\lambda$-point

titleFlow of Liquid Helium II

journaltitleZeitschrift für Physik
titleWärmegleichgewicht im Strahlungsfeld bei Anwesenheit von Materie

journaltitleSitzungsberichte der Preussischen Akademie der Wissenschaften
titleQuantentheorie des einatomigen idealen Gases. 2. Abhandlung

titleThe $\lambda$-Phenomenon of Liquid Helium and the Bose-Einstein Degeneracy
journaltitleJ. Phys. USSR
titleTwo-fluid model of liquid helium II

titleTransport Phenomena in Helium II

journaltitleJournal of Physics USSR
titleOn the theory of superfluidity

American Physical Society

journaltitleRev. Mod. Phys.
titleConcept of Off-Diagonal Long-Range Order and the Quantum Phases of Liquid He and of Superconductors

Oxford University Publications

titleBose-Einstein Condensation

issn0028-0836, 1476-4687
titleSuperfluidity in Neutron Stars

issn2469-9985, 2469-9993
journaltitlePhys. Rev. C
titleSuperfluid hydrodynamics in the inner crust of neutron stars

journaltitlePhys. Rev. Lett.
titleRapid Cooling of the Neutron Star in Cassiopeia A Triggered by Neutron Superﬂuidity in Dense Matter

journaltitlePhysics Letters B
titleAxion condensate as a model for dark matter halos

titleBose-Einstein condensation of photons in an optical microcavity

American Physical Society

journaltitlePhys. Rev. A
titlePrecision measurement of the $^{87}\text{Rb}$ tune-out wavelength in the hyperfine ground state ${F}=1$ at 790 nm

American Physical Society

journaltitlePhys. Rev. Lett.
titleLaser Deceleration of an Atomic Beam

American Physical Society

journaltitlePhys. Rev. Lett.
titleThree-dimensional viscous confinement and cooling of atoms by resonance radiation pressure

American Physical Society

journaltitlePhys. Rev. Lett.
titleTrapping of Neutral Sodium Atoms with Radiation Pressure

American Physical Society

journaltitlePhys. Rev. Lett.
titleExperimental Observation of Optically Trapped Atoms

American Physical Society

journaltitlePhys. Rev. Lett.
titleFirst Observation of Magnetically Trapped Neutral Atoms

American Physical Society

journaltitlePhys. Rev. Lett.
titleStable, Tightly Confining Magnetic Trap for Evaporative Cooling of Neutral Atoms

American Physical Society

journaltitlePhys. Rev. Lett.
titleObservation of Atoms Laser Cooled below the Doppler Limit

titleObservation of Bose-Einstein condensation in a dilute atomic vapor

journaltitlePhysical Review Letters
titleBose-Einstein condensation in a gas of sodium atoms

journaltitlephysical review letters
titleEvidence of Bose-Einstein condenssation in an atomic gas with attractive interactions

American Physical Society

journaltitleRev. Mod. Phys.
titleNobel Lecture: Bose-Einstein condensation in a dilute gas, the first 70 years and some recent experiments

American Physical Society

journaltitlePhys. Rev. Lett.
titleOptical Confinement of a Bose-Einstein Condensate

American Association for the Advancement of Science (AAAS)

titleOnset of Fermi Degeneracy in a Trapped Atomic Gas

American Association for the Advancement of Science (AAAS)

titleObservation of Fermi Pressure in a Gas of Trapped Atoms

American Physical Society

journaltitlePhys. Rev. Lett.
titleQuasipure Bose-Einstein Condensate Immersed in a Fermi Sea

issn0031-9007, 1079-7114
journaltitlePhysical Review Letters
titleAdiabatic Cooling of Cesium to 700 nK in an Optical Lattice

issn0031-9007, 1079-7114
journaltitlePhysical Review Letters
titleSingle-Atom Source in the Picokelvin Regime
anning et al. - 2014 - Single-Atom Source in the Picokelvin Regime.pdf:application/pdf

American Physical Society

journaltitlePhys. Rev. A
titleCoherence time of a Bose-Einstein condensate

titleAtomic Hong-Ou-Mandel experiment

journaltitleNature Physics
titleWheeler's delayed-choice gedanken experiment with a single atom

American Physical Society

journaltitleRev. Mod. Phys.
titleOptics and interferometry with atoms and molecules

American Physical Society

journaltitleRev. Mod. Phys.
titleUltracold photoassociation spectroscopy: Long-range molecules and atomic scattering

American Association for the Advancement of Science (AAAS)

titleA Fermi-degenerate three-dimensional optical lattice clock

American Physical Society

journaltitlePhys. Rev. Lett.
titleImaging Optical Frequencies with $100\text{ }\text{ }\ensuremath{\mu}\mathrm{Hz}$ Precision and $1.1\text{ }\text{ }\ensuremath{\mu}\mathrm{m}$ Resolution

American Physical Society

journaltitlePhys. Rev. A
titleBose-Einstein condensate in a box

American Physical Society

journaltitlePhys. Rev. Lett.
titleBose-Einstein Condensation in a Circular Waveguide

American Physical Society

journaltitlePhys. Rev. Lett.
titleBose-Einstein Condensation of Atoms in a Uniform Potential

American Association for the Advancement of Science (AAAS)

titleObservation of a One-Dimensional Tonks-Girardeau Gas

American Physical Society

journaltitlePhys. Rev. Lett.
titleTwo-Dimensional Bose-Einstein Condensate in an Optical Surface Trap

American Physical Society

journaltitlePhys. Rev. Lett.
titleObservation of Bose-Einstein Condensation of Molecules

journaltitleJ. Chem. Phys
titlePerspective: Ultracold molecules and the dawn of cold controlled chemistry

American Physical Society

journaltitlePhys. Rev. Lett.
titleDirect Measurements of Collisional Dynamics in Cold Atom Triads

Oxford University Press

titleUltracold atoms in optical lattices: Simulating quantum many-body systems

journaltitleNature Physics
titleUltracold quantum gases in optical lattices

issn0034-6861, 1539-0756
journaltitleReviews of Modern Physics
titleMany-Body Physics with Ultracold Gases

journaltitleNature Physics
titleQuantum simulations with ultracold atoms in optical lattices

issn0036-8075, 1095-9203
titleQuantum Simulations with Ultracold Atoms in Optical Lattices
noteInformation for the public, NobelPrize.org

titleMaking, probing, and understanding Bose-Einstein condensates

journaltitleJournal of Optics B: Quantum and Semiclassical Optics
titlePhase modulation spectroscopy: a non-destructive probe of Bose-Einstein condensates

journaltitleReviews of Modern Physics
titleCold and trapped metastable noble gases

American Physical Society

journaltitlePhys. Rev. Lett.
titleBragg Spectroscopy of a Bose-Einstein Condensate

titleA Well-Collimated Quasi-Continuous Atom Laser

American Physical Society

journaltitlePhys. Rev. A
titleTheory of collective Raman scattering from a Bose-Einstein condensate

American Physical Society

journaltitlePhys. Rev. Lett.
titleOutput Coupler for Bose-Einstein Condensed Atoms

American Physical Society

journaltitlePhys. Rev. Lett.
titleAtom Laser with a cw Output Coupler

American Physical Society

journaltitlePhys. Rev. Lett.
titleExcitation Spectrum of a Bose-Einstein Condensate

American Physical Society

journaltitlePhys. Rev. Lett.
titleExperimental Observation of the Bogoliubov Transformation for a Bose-Einstein Condensed Gas

American Physical Society

journaltitlePhys. Rev. Lett.
titleVortex Formation in a Stirred Bose-Einstein Condensate

American Physical Society

journaltitlePhys. Rev. Lett.
titleObservation of Atom Number Fluctuations in a Bose-Einstein Condensate

American Physical Society

journaltitlePhys. Rev. Lett.
titleObservation of Strong Quantum Depletion in a Gaseous Bose-Einstein Condensate

journaltitlePhysical Review Letters
titleQuantum Depletion of a Homogeneous Bose-Einstein Condensate

American Physical Society

journaltitlePhys. Rev. Lett.
titleMeasurement of the Canonical Equation of State of a Weakly Interacting 3D Bose Gas

American Physical Society

journaltitlePhys. Rev. Lett.
titleBose-Einstein Condensation of Atomic Hydrogen

American Physical Society (APS)

journaltitlePhysical Review Letters
titleMetastable Helium: A New Determination of the Longest Atomic Excited-State Lifetime

American Association for the Advancement of Science (AAAS)

titleA Bose-Einstein Condensate of Metastable Atoms

American Physical Society

journaltitlePhys. Rev. Lett.
titleBose-Einstein Condensation of Metastable Helium

American Physical Society

journaltitlePhys. Rev. A
titleMetastable helium Bose-Einstein condensate with a large number of atoms

Elsevier BV

journaltitleOptics Communications
titleBose–Einstein condensation of metastable helium in a bi-planar quadrupole Ioffe configuration trap

American Physical Society

journaltitlePhys. Rev. Lett.
titleBuffer-Gas Cooled Bose-Einstein Condensate

American Physical Society

journaltitlePhys. Rev. A
titleBose-Einstein condensate of metastable helium for quantum correlation experiments

American Physical Society

journaltitlePhys. Rev. A
titleFast production of Bose-Einstein condensates of metastable helium

Springer Science
Business Media LLC

journaltitleApplied Physics B
titleSimple method for producing Bose–Einstein condensates of metastable helium using a single-beam optical dipole trap

American Physical Society

journaltitlePhys. Rev. A
titleRapid generation of metastable helium Bose-Einstein condensates

issn2469-9926, 2469-9934
journaltitlePhysical Review A
titleFrequency measurements of transitions from the $2^{P}_2$ state to the $5^1{D}_2$ , $5^3{S}_1 $ , and $5^3 {D} $ states in ultracold helium

issn0031-9007, 1079-7114
journaltitlePhysical Review Letters
titleDirect Measurement of the Forbidden 2 S 3 1 → 3 S 3 1 Atomic Transition in Helium
homas et al. - 2020 - Direct Measurement of the Forbidden 2 S 3 1 → 3 S .pdf:application/pdf

American Association for the Advancement of Science (AAAS)

titleMeasurement of a helium tune-out frequency: an independent test of quantum electrodynamics

Cambridge University Press

titleScience and Humanism: Physics in Our Time

Oxford university press

titleAtomic Physics

Capella Archive

titleThe Physics of Quantum Mechanics

American Physical Society

journaltitlePhys. Rev. Lett.
titleAcceleration and Trapping of Particles by Radiation Pressure

American Physical Society

journaltitlePhys. Rev. Lett.
titleTrapping of Atoms by Resonance Radiation Pressure

titleOptical trapping and manipulation of single cells using infrared laser beams

titleOptical trapping and manipulation of viruses and bacteria

American Physical Society

journaltitlePhys. Rev. Lett.
titleAll-Optical Formation of an Atomic Bose-Einstein Condensate

Academic Press

seriesAdvances In Atomic, Molecular, and Optical Physics
titleOptical Dipole Traps for Neutral Atoms

American Physical Society

journaltitlePhys. Rev. A
titleComplete ground-state transition rates for the helium $2\text{ }^{3}P$ manifold

journaltitleZ Physik
titleUber den grundzustand des Heliumatoms

journaltitleZ Physik
titleNeue berechnung der Energie des Heliums im Grunzustande, soqie des tiefsten Terms von Ortho-helium

journaltitleZ Physik
titleNumerische berechnun der 2S terme von Ortho- und Par-helium

Cambridge University Press

titleBose-Einstein condensation in dilute gases

American Physical Society

journaltitleRev. Mod. Phys.
titleExperiments and theory in cold and ultracold collisions

journaltitlePhysical Review A
titleHeteronuclear ionizing collisions between laser-cooled metastable helium atoms

journaltitleJournal of Chemical Physics
titleBounds for the scattering length of spin-polarized helium from high-accuracy electronic structure calculations

journaltitlePhys. Rev. A
titleUltracold collisions of metastable helium atoms

Springer Science
Business Media LLC

journaltitleApplied Physics B
titleUltracold metastable helium: Ramsey fringes and atom interferometry

American Physical Society (APS)

journaltitlePhys. Rev. Lett.
titleAccurate Determination of the Scattering Length of Metastable Helium Atoms Using Dark Resonances between Atoms and Exotic Molecules

American Physical Society

journaltitleRev. Mod. Phys.
titleFeshbach resonances in ultracold gases

titleNegative absolute temperature for motional degrees of freedom

American Physical Society

journaltitlePhys. Rev. Lett.
titleStable ${}^{85}\mathrm{Rb}$ Bose-Einstein Condensates with Widely Tunable Interactions

American Physical Society

journaltitlePhys. Rev. Lett.
titleExperimental Study of the BEC-BCS Crossover Region in Lithium 6

American Physical Society

journaltitlePhys. Rev. A
titleFeshbach resonances in $^{3}\mathrm{He}$${}^{*}$-$^{4}\mathrm{He}$${}^{*}$ mixtures

American Physical Society

journaltitlePhys. Rev. A
titleClose-coupled calculation of collisions of magnetostatically trapped metastable helium atoms

American Physical Society

journaltitlePhys. Rev. A
titleMagnetic-field-dependent trap loss of ultracold metastable helium

journaltitleArXiv preprint
titleClose-coupled model of Feshbach resonances in ultracold $^3$He$^*$ and $^4$He$^*$ atomic Collisions

journaltitleZeitschrift für Physik D Atoms, Molecules and Clusters
titleExperimental and theoretical studies of the Bi-excited collision systems He*(23 S) + He*(23 S, 21 S) at thermal and subthermal kinetic energies

American Physical Society

journaltitlePhys. Rev. A
titleBose-Einstein condensation and spin mixtures of optically trapped metastable helium

journaltitlePhysical Review A
titleHomonuclear ionizing collisions of laser-cooled metastable helium atoms

journaltitleEurophysics Letters
titleMagneto-Optical Trapping of Metastable Helium: Collisions in the Presence of Resonant Light

journaltitleApplied Physics B
titleMagneto-Optical trap of metastable helium-3 atoms

American Physical Society

journaltitlePhys. Rev. Lett.
titleOptical Collisions of Cold, Metastable Helium Atoms

American Physical Society

journaltitlePhys. Rev. A
titleLarge numbers of cold metastable helium atoms in a magneto-optical trap

American Physical Society

journaltitlePhys. Rev. Lett.
titleDecay Kinetics and Bose Condensation in a Gas of Spin-Polarized Triplet Helium

journaltitlePhysical Review A
titleSpin polarization and quantum-statistical effects in ultracold ionizing collisions

journaltitlePhysical Review Letters
titleCollisional Properties of Cold Spin-Polarized Metastable Neon Atoms
noteA list of sources is found at <plasma-universe.com>
noteSee <https://www.bose.res.in/Conferences/BECRP18/Mukunda.pdf> and references therein

Space Science Library

booktitleThe Physics and Astrophysics of Neutron Stars
titleSuperfluidity and Superconductivity in Neutron Stars

titleBose-Einstein Codnensation of Trapped Atomic Gases

American Physical Society

journaltitleRev. Mod. Phys.
titleTheory of Bose-Einstein condensation in trapped gases

Pleiades publishing

journaltitlePhysics of Particles and Nuclei
titleBasics of Bose-Einstein condensation

American Physical Society

journaltitlePhys. Rev.
titleBose-Einstein Condensation and Liquid Helium

American Physical Society

journaltitlePhys. Rev. Lett.
titlePenrose-Onsager Criterion Validation in a One-Dimensional Polariton Condensate

titleObservation of Interference Between Two Bose Condensates

titleHanbury Brown Twiss effect for ultracold quantum gases

titleComparison of the Hanbury Brown-Twiss effect for bosons and fermions

issn0031-9007, 1079-7114
journaltitlePhysical Review Letters
titleQuantum Kibble-Zurek Mechanism in a Spin-1 Bose-Einstein Condensate
noteAdmittedly, to my knowledge, this has yet to be detected.

journaltitleLaser physics letters
titleBose-Einstein condensation and gauge symmetry breaking

American Physical Society

journaltitlePhys. Rev. Lett.
titleSpontaneous Symmetry Breaking and Phase Coherence of a Photon Bose-Einstein Condensate Coupled to a Reservoir

journaltitleCommunications in Mathematical Physics
titleOn th asymptotic exactness of the Bogoliubov approximation for many boson systems

journaltitleAmerican Journal of Physics
titleSuperconductivity, broken gauge symmetry, and the Higgs mechanism

American Physical Society

journaltitlePhys. Rev. Lett.
titleEquivalence of Bose-Einstein Condensation and Symmetry Breaking

American Physical Society

journaltitlePhys. Rev. Lett.
titleCan a Bose Gas Be Saturated?

American Physical Society

journaltitlePhys. Rev. Lett.
titleEffects of Interactions on the Critical Temperature of a Trapped Bose Gas

titleLaser Cooling and Trapping of Neutral Atoms

Vrije Universiteit Amsterdam

titleBose-Einstein Condensation of Metastable Helium Atoms

journaltitleContemporary Physics
titleMetastable helium: Atom optics with nano-grenades

abstractWe have developed and characterised a stable, narrow linewidth external-cavity laser (ECL) tunable over 100 nm around 1080 nm, using a single-angled-facet gain chip. We propose the ECL as a low-cost, high-performance alternative to fibre and diode lasers in this wavelength range and demonstrate its capability through the spectroscopy of metastable helium. Within the coarse tuning range, the wavelength can be continuously tuned over 30 pm (7.8 GHz) without mode-hopping and modulated with bandwidths up to 3 kHz (piezo) and 37(3) kHz (current). The spectral linewidth of the free-running ECL was measured to be 22(2) kHz (Gaussian) and 4.2(3) kHz (Lorentzian) over 22.5 ms, while a long-term frequency stability better than 40(20) kHz over 11 hours was observed when locked to an atomic reference.
journaltitleOpt. Express
titleWidely tunable, narrow linewidth external-cavity gain chip laser for spectroscopy between 1.0
Diode lasers; Lasers,tunable; Amplified spontaneous emission; Diode lasers; Fiber lasers; Modulation transfer function; Saturation spectroscopy; Tunable lasers

abstractWe have developed a novel, high ﬂux source of metastable rare gas atoms (helium, neon and argon) that uses liquid helium cooling to reduce the initial atomic velocity. Fluxes exceeding 1014 atoms/ster/s with He and Ne were obtained. With average velocities of ∼ 600 m/s for He and ∼ 300 m/s for Ne and Ar, this source will enable simpler, more compact beam lines for loading magneto-optical traps.
issn0946-2171, 1432-0649
journaltitleApplied Physics B
titleA high flux, liquid-helium cooled source of metastable rare gas atoms
wansson et al. - 2004 - A high flux, liquid-helium cooled source of metast.pdf:application/pdf

Elsevier BV

journaltitleOptics Communications
titleBose–Einstein condensation of metastable helium in a bi-planar quadrupole Ioffe configuration trap

Australian National University

titleTransition Lifetime Measurements and Correlation Experiments with Ultra-Cold Metastable Helium
Condensed Matter - Mesoscale and Nanoscale Physics,Condensed Matter - Quantum Gases,Quantum Physics

abstractThe ﬁeld of atom optics has progressed rapidly over the past 20 years since the realisation of Bose-Einstein condensation, such that the wave behaviour of atomic gases is now routinely demonstrated. Furthermore, the study of quantum atom optics, which goes beyond a ‘mean-ﬁeld’ description of quantum systems to consider behaviour of single particles, has demonstrated both the similarities between photons and massive species, and the differences between the two as a result of the internal structure and external interactions of atoms. An important class of quantities which allow such effects to be measured are nth order correlation functions, which can be interpreted as a result of either particle or wave behaviour, and provide a statistical description of ﬂuctuations in n-tuples of particles in a source, which rigorously deﬁnes concepts such as coherence. The quantum statistics of a Bose-Einstein condensate should be the same as that for an optical laser, while an ideal thermal Bose gas matches the behaviour of an incoherent source of light. However, correlation measurements can also be used to quantify the inﬂuence of interactions, dimensionality, conﬁning potentials and waveguides, and the difference in quantum statistics between fermions and bosons, which illustrates the rich range of behaviour exhibited by atomic gases.
titleFoundation experiments in quantum atom optics with ultracold metastable helium

Australian National University

titleNonlocal correlations between freely propagating pairs of atoms

Australian National University

titleOptical guiding with bright sources of $2^{3}S_1$ metastable helium

issn0034-6748, 1089-7623
journaltitleReview of Scientific Instruments
titleOptimum design and construction of a Zeeman slower for use with a magneto-optic trap
edman et al. - 2004 - Optimum design and construction of a Zeeman slower.pdf:application/pdf

abstractWe demonstrate a novel temperature controlled filtered laminar air enclosure composed of primarily off-the-shelf components that can be applied to a broad class of systems to significantly enhance their performance. An air mixing method is employed to provide variable cooling of the incoming filtered air, providing a temperature stability of ± 0.02 °C within the enclosure. The method is inexpensive to implement, and is suitable for a wide range of temperature controlled enclosures, with dimensions in the approximate range from 1 m to 5 m, making it ideal for many scientific applications.
issn0957-0233, 1361-6501
journaltitleMeasurement Science and Technology
titlePrecision temperature controlled filtered laminar air enclosure
edman et al. - 2015 - Precision temperature controlled filtered laminar .pdf:application/pdf

issn0031-9007, 1079-7114
journaltitlePhysical Review Letters
titleExperimental Determination of the Helium 2 P 1 3 – 1 S 0 1 Transition Rate
etermination of the Helium 2 P 1 3 –.pdf:C
Dall et al. - 2008 - Experimental Determination of the Helium 2 P 1 3 –.pdf:application/pdf

American Physical Society

journaltitlePhys. Rev. Lett.
titleSolving the Quantum Many-Body Problem via Correlations Measured with a Momentum Microscope

issn1745-2473, 1745-2481
journaltitleNature Physics
titleIdeal n-body correlations with massive particles
all et al. - 2013 - Ideal n-body correlations with massive particles.pdf:application/pdf

abstractWe present here the ﬁrst measurement of the third-order spatial correlation function for atoms, made possible by cooling a metastable helium cloud to create an ultracold thermal ensemble just above the Bose–Einstein condensation point. The resulting large correlation length well exceeds the spatial resolution limit of the single-atom detection system, and enables extension of our earlier temporal measurements to evaluate the third-order correlation function in the spatial plane of the detector. The enhancement of the spatial third-order correlation function above a value of unity demonstrates the presence of spatial three-atom bunching, as expected for an incoherent source.
journaltitleNew Journal of Physics
titleThird-order spatial correlations for ultracold atoms
anning et al. - 2013 - Third-order spatial correlations for ultracold ato.pdf:application/pdf

The Optical Society

journaltitleOptics Express
titleThe Hanbury Brown-Twiss effect in a pulsed atom laser

journaltitleNature Communications
titleObservation of atomic speckle and Hanbury Brown–Twiss correlations in guided matter waves
all et al. - 2011 - Observation of atomic speckle and Hanbury Brown–Tw.pdf:application/pdf

issn0036-8075, 1095-9203
titleDirect Measurement of Long-Range Third-Order Coherence in Bose-Einstein Condensates
odgman et al. - 2011 - Direct Measurement of Long-Range Third-Order Coher.pdf:application/pdf

issn0031-9007, 1079-7114
journaltitlePhysical Review Letters
titleCorrelations in Amplified Four-Wave Mixing of Matter Waves
uGway et al. - 2011 - Correlations in Amplified Four-Wave Mixing of Matt.pdf:application/pdf

issn0031-9007, 1079-7114
journaltitlePhysical Review Letters
titleObservation of Transverse Bose-Einstein Condensation via Hanbury Brown–Twiss Correlations
uGway et al. - 2013 - Observation of Transverse Bose-Einstein Condensati.pdf:application/pdf

abstractUsing the unique detection properties offered by metastable helium atoms we have produced high resolution images of the transverse spatial proﬁles of an atom laser beam. We observe fringes on the beam, resulting from quantum mechanical interference between atoms that start from rest at different transverse locations within the outcoupling surface and end up at a later time with different velocities at the same transverse position. Numerical simulations in the low output-coupling limit give good quantitative agreement with our experimental data.
journaltitleOptics Express
titleObservation of transverse interference fringes on an atom laser beam
Dall et al. - 2007 - Observation of transverse interference fringes on .pdf:application/pdf

abstractWe report the ﬁrst real-time feedback control of an atom laser. The unique feature of metastable helium atoms, the production of ions in the atom laser outcoupling process, is exploited to actively control the spatial location inside the Bose-Einstein condensate where outcoupling occurs. Unlike alkali atom lasers, this provides almost instantaneous feedback which reduces frequency, amplitude and spatial mode ﬂuctuations in the atom laser beam.
journaltitleOptics Express
titleFeedback control of an atom laser
all et al. - 2008 - Feedback control of an atom laser.pdf:application/pdf

American Physical Society (APS)

journaltitlePhysical Review A
titleBogoliubov-Cherenkov radiation in an atom laser

issn1050-2947, 1094-1622
journaltitlePhysical Review A
titleTransverse mode imaging of guided matter waves
all et al. - 2010 - Transverse mode imaging of guided matter waves.pdf:application/pdf

issn0146-9592, 1539-4794
journaltitleOptics Letters
titleObservation of the first excited transverse mode in guided matter waves
all et al. - 2011 - Observation of the first excited transverse mode i.pdf:application/pdf

titleGhost imaging with atoms

issn0031-9007, 1079-7114
journaltitlePhysical Review Letters
titleHigher-Order Quantum Ghost Imaging with Ultracold Atoms
igher-Order Quantum Ghost Imaging with Ultracold .pdf:C
Hodgman et al. - 2019 - Higher-Order Quantum Ghost Imaging with Ultracold .pdf:application/pdf

abstractAbstract Bell correlations are a foundational demonstration of how quantum entanglement contradicts the classical notion of local realism. Rigorous validation of quantum nonlocality have only been achieved between solid-state electron spins, internal states of trapped atoms, and photon polarisations, all weakly coupling to gravity. Bell tests with freely propagating massive particles, which could provide insights into the link between gravity and quantum mechanics, have proven to be much more challenging to realise. Here we use a collision between two Bose-Einstein condensates to generate spin entangled pairs of ultracold helium atoms, and measure their spin correlations along uniformly rotated bases. We show that correlations in the pairs agree with the theoretical prediction of a Bell triplet state, and observe a quantum mechanical witness of Bell correlations with $$6\sigma$$ 6 σ significance. Extensions to this scheme could find promising applications in quantum metrology, as well as for investigating the interplay between quantum mechanics and gravity.
journaltitleNature Communications
titleBell correlations between spatially separated pairs of atoms
hin et al. - 2019 - Bell correlations between spatially separated pair.pdf:application/pdf

journaltitleProceedings of the National Academy of Sciences
titleApproaching the adiabatic timescale with machine learning

journaltitleNew Journal of Physics
titleEntanglement-based 3D magnetic gradiometry with an ultracold atomic scattering halo
hin et al. - 2020 - Entanglement-based 3D magnetic gradiometry with an.pdf:application/pdf

American Physical Society

journaltitlePhys. Rev. Lett.
titlePrecision Measurement for Metastable Helium Atoms of the 413 nm Tune-Out Wavelength at Which the Atomic Polarizability Vanishes

issn0031-9007, 1079-7114
journaltitlePhysical Review Letters
shorttitleElectron Collisions with Laser Cooled and Trapped Metastable Helium Atoms
titleElectron Collisions with Laser Cooled and Trapped Metastable Helium Atoms: Total Scattering Cross Sections
Uhlmann et al. - 2005 - Electron Collisions with Laser Cooled and Trapped .pdf:application/pdf

abstractThis paper presents the ﬁrst study of the collision dynamics of an ultra-cold spin-polarized mixture of rubidium and metastable helium (He∗) atoms. Our experiment monitors ion production from the mixture for both magnetically polarized and unpolarized cases. In the unpolarized case, we observe an increase in our background ion rate. However, in the completely polarized sample the ion production is below the sensitivity of our experiment. Nonetheless, we determine an upper limit of 5 × 10-12 cm3 s-1 for the polarized rate constant (βRb-He∗), which is two orders of magnitude below the unpolarized rate constant. Such a suppression of the He∗–87Rb polarized rate was not apparent a priori and opens the intriguing possibility of creating a dual Bose–Einstein condensate comprising an alkali ground-state atom and an excited-state noblegas atom.
journaltitleNew Journal of Physics
titleSuppression of Penning ionization in a spin-polarized mixture of rubidium and He $^{\textrm{*}}$
yron et al. - 2010 - Suppression of Penning ionization in a spin-polari.pdf:application/pdf

issn1050-2947, 1094-1622
journaltitlePhysical Review A
titleTrap loss in a metastable helium-rubidium magneto-optical trap
yron et al. - 2010 - Trap loss in a metastable helium-rubidium magneto-.pdf:application/pdf

journaltitleJournal of the Optical Aociety of America B
titleOptical Molasses

journaltitleOptics Communications
titleAn intense collimated beam of metastable helium atoms by two-dimensional laser cooling

American Physical Society

journaltitlePhys. Rev. A
titlePhase-space density in the magneto-optical trap

American Physical Society

journaltitlePhys. Rev. Lett.
titleCollective behavior of optically trapped neutral atoms

journaltitleReview of Scientific Instruments
titleActive cancellation of stray magnetic fields in a Bose-Einstein condensation experiment

titleMagnetostatic Traps for Charged and Neutral Particles

American Physical Society

journaltitlePhys. Rev. A
titleSpin-flip transitions in a magnetic trap

American Physical Society

journaltitlePhys. Rev. A
titleMajorana spin-flip transitions in a magnetic trap

American Physical Society

journaltitlePhys. Rev. Lett.
titleCooling Neutral Atoms in a Magnetic Trap for Precision Spectroscopy

American Physical Society

journaltitlePhys. Rev. Lett.
titleBose-Einstein Condensation in a Tightly Confining dc Magnetic Trap

American Physical Society

journaltitlePhys. Rev. A
titleBose-Einstein condensation in a quadrupole-Ioffe-configuration trap
family=van Druten,

Academic Press

journaltitleAdvances in atomic, molecular, and optical physics
titleEvaporative cooling of trapped atoms

American Physical Society

journaltitlePhys. Rev. Lett.
titlePhotoassociation Spectroscopy of Cold $\mathrm{He}(2{}^{3}\mathit{S})$ Atoms

journaltitleJournal of Physics B: Atomic, Molecular and Optical physics
titleHigh densities and optical collisions in a two-colour magneto-optical trap for metastable helium

Springer Science
Business Media LLC

journaltitleNature Physics
titlePrecision spectroscopy of helium in a magic wavelength optical dipole trap

journaltitleNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
note5th Int. Conf. on Position-Sensitive Detectors
titleA broad-application microchannel-plate detector system for advanced particle or photon detection tasks: large area imaging, precise multi-hit timing information and high detection rate

Academic Press

booktitleAtomic, Molecular, and Optical Physics: Atoms and Molecules
seriesExperimental Methods in the Physical Sciences
title11 - Detection of Metastable Atoms and Molecules

American Physical Society

journaltitlePhys. Rev. A
titleSpatial coherence and density correlations of trapped Bose gases

American Physical Society

journaltitlePhys. Rev.
titleThe Quantum Theory of Optical Coherence

American Physical Society

journaltitlePhys. Rev. Lett.
titleGuided Quasicontinuous Atom Laser

journaltitleEurophysics Letters
titleA quasi-monomode guided atom laser from an all-optical Bose-Einstein condensate

American Physical Society

journaltitlePhys. Rev. Lett.
titleOptics with an Atom Laser Beam

titleA Continuous Source of Bose-Einstein Condensed Atoms

American Physical Society (APS)

journaltitlePhysical Review
titleFine Structure of Helium

American Physical Society (APS)

journaltitlePhysical Review Letters
titleAbsolute Frequency Measurements of the23S1→23P0,1,2Atomic Helium Transitions around 1083 nm

Springer Science
Business Media LLC

journaltitleApplied Physics B
titleDoppler-free intermodulated fluorescence spectroscopy of 4He 23P–31,3D transitions at 588 nm with a 1-W compact laser system

American Physical Society (APS)

journaltitlePhysical Review Letters
titleDetermination of the Fine Structure Constant Using Helium Fine Structure

American Physical Society (APS)

journaltitlePhysical Review Letters
titleUltrahigh-Precision Measurement of the n=2 Triplet P Fine Structure of Atomic Helium Using Frequency-Offset Separated Oscillatory Fields

abstractConsidering that the proton is a basic subatomic component of all ordinary matter – as well as being ubiquitous in its solo role as the hydrogen ion H+ – there are some surprising gaps in our knowledge of its structure and behaviour. A collaborative project to determine the root-mean-square charge radius of the proton to better than the 1% accuracy of the current 'best' value suggests that those knowledge gaps may be greater than was thought. The new determination comes from a technically challenging spectroscopic experiment – the measurement of the Lamb shift (the energy difference between a specific pair of energy states) in 'muonic hydrogen', an exotic atom in which the electron is replaced by its heavier twin, the muon. The result is unexpected: a charge radius about 4% smaller than the previous value. The discrepancy remains unexplained. Possible implications are that the value of the most accurately determined fundamental constant, the Rydberg constant, will need to be revised – or that the validity of quantum electrodynamics theory is called into question.
titleThe size of the proton

Springer Science
Business Media LLC

titleA small proton charge radius from an electron–proton scattering experiment

American Physical Society

journaltitlePhys. Rev. A
titleDeuteron charge radius from the Lamb-shift measurement in muonic deuterium

American Association for the Advancement of Science (AAAS)

titleLaser spectroscopy of muonic deuterium

American Physical Society

journaltitlePhys. Rev. Lett.
titleNew Measurement of the $1S\ensuremath{-}3S$ Transition Frequency of Hydrogen: Contribution to the Proton Charge Radius Puzzle

AIP Publishing

journaltitleJournal of Physical and Chemical Reference Data
titleTheory of the Helium Isotope Shift

American Physical Society (APS)

journaltitlePhysical Review A
titleTesting fundamental interactions on the helium atom

IOP Publishing

journaltitleJournal of Physics: Conference Series
titleHelium fine structure theory for determination of $\alpha$

American Physical Society (APS)

journaltitlePhysical Review Letters
titleFine Structure of Heliumlike Ions and Determination of the Fine Structure Constant

IOP Publishing

journaltitleJournal of Physics: Conference Series
titleSpin-forbidden Helium I transition rates

Canadian Science Publishing

journaltitleCanadian Journal of Physics
titleEnergy levels for the stable isotopes of atomic helium(4He I and 3He I)

American Physical Society (APS)

journaltitlePhysical Review A
titleHigher-order recoil corrections for triplet states of the helium atom

American Physical Society (APS)

journaltitlePhysical Review A
titleHigher-order recoil corrections for singlet states of the helium atom

American Association for the Advancement of Science (AAAS)

titleFrequency Metrology in Quantum Degenerate Helium: Direct Measurement of the 2 3S1 -> 2 1S0 Transition

American Physical Society

journaltitlePhys. Rev. Lett.
titleHigh-Precision Spectroscopy of the Forbidden $2\text{ }^{3}{S}_{1}\ensuremath{\rightarrow}2\text{ }^{1}{P}_{1}$ Transition in Quantum Degenerate Metastable Helium

American Physical Society

journaltitlePhys. Rev. Lett.
titleComparison of Spectral Linewidths for Quantum Degenerate Bosons and Fermions

American Physical Society (APS)

journaltitlePhysical Review A
titleQuantum-electrodynamic corrections to the 1s3d state of the helium atom

American Physical Society

journaltitlePhys. Rev. A
titleComplete ${\ensuremath{\alpha}}^{7}m$ Lamb shift of helium triplet states

American Physical Society (APS)

journaltitlePhysical Review A
titleForbidden transitions in the helium atom

The Optical Society

journaltitleJournal of the Optical Society of America
titleNew wavelengths for some Helium (He I) lines
given=Vladimir A.,

journaltitlearXiv preprint
titleQED calculation of ionization energies of 1snd states in helium

titleTechnical Information: Wavelength Meter WS8-2

AIP Publishing

journaltitleJournal of Physical and Chemical Reference Data
titleThe Effect of Quantum-Mechanical Interference on Precise Measurements of the n = 2 Triplet P Fine Structure of Helium

journaltitlePhysical Review A
titleQuantum interference effects in saturated absorption spectroscopy of n=2 triplet-helium fine structure

American Physical Society

journaltitlePhys. Rev. A
titleDetection of small atom numbers through image processing

EDP Sciences

journaltitleJournal de Physique
titleForbidden singlet-triplet anticrossings in 3He: precise determination of n1D-n3D (n = 3-6) intervals
noteLeary lamented misinterpretations of this motto: “Unhappily, my explanations of this sequence of personal development are often misinterpreted to mean “Get stoned and abandon all constructive activity." As he clarified later, the intended meaning was `to go within... to interact harmoniously with the world around you and to externalize, materialize, express your new internal perspectives" and to suggest “an active, selective, graceful process of detachment from involuntary or unconscious commitments... self-reliance, a discovery of one's singularity, a commitment to mobility, choice, and change".

American Physical Society

journaltitlePhys. Rev. A
titleTune-out wavelengths for metastable helium

journaltitlePhys. Lett. B
titleHigh-precision measurement of the proton elastic form factor ratio $\mu_p {G}_{E}/{G}_{M}$ at low ${Q}^2$

American Physical Society (APS)

journaltitlePhysical Review Letters
titleMeasurement of the Frequency of the 2 S3-2 P3 Transition of He4

American Physical Society

journaltitlePhys. Rev. Lett.
titleIonization Energy of the Metastable $2\text{ }^{1}{\mathrm{S}}_{0}$ State of $^{4}\mathrm{He}$ from Rydberg-Series Extrapolation
family=Hill, Richard J.,

journaltitleEPJ Web Conf.
titleReview of experimental and theoretical status of the proton radius puzzle

American Physical Society

journaltitlePhys. Rev. A
titleSpecies-specific optical lattices

abstractWe present a systematic derivation of the dynamical polarizability and the ac Stark shift of the ground and excited states of atoms interacting with a far-off-resonance light field of arbitrary polarization. We calculate the scalar, vector, and tensor polarizabilities of atomic cesium using resonance wavelengths and reduced matrix elements for a large number of transitions. We analyze the properties of the fictitious magnetic field produced by the vector polarizability in conjunction with the ellipticity of the polarization of the light field.
journaltitleEur. Phys. J. D
titleDynamical polarizability of atoms in arbitrary light fields: general theory and application to cesium

titleAn optical lattice clock

American Physical Society

journaltitleRev. Mod. Phys.
titleColloquium: Physics of optical lattice clocks

Université Pierre et Marie Curie

titleStrontium optical lattice clocks : clock comparisons for timescales and fundamental physics applications

American Physical Society

journaltitlePhys. Rev. A
titleMagic wavelength of the $^{138}\mathrm{Ba}^{+}$ $6s$ $^{2}S_{1/2}--5d$ $^{2}D_{5/2}$ clock transition

American Physical Society

journaltitlePhys. Rev. Lett.
titleOptical Lattice Trapping of $^{199}\mathrm{Hg}$ and Determination of the Magic Wavelength for the Ultraviolet $^{1}S_{0}\ensuremath{\leftrightarrow}^{3}P_{0}$ Clock Transition

American Physical Society

journaltitlePhys. Rev. Lett.
titlePrecision Measurement of Transition Matrix Elements via Light Shift Cancellation

American Physical Society

journaltitlePhys. Rev. A
titleLaser-cooled cesium atoms confined with a magic-wavelength dipole trap inside a hollow-core photonic-bandgap fiber

American Physical Society

journaltitlePhys. Rev. A
titleRelativistic full-configuration-interaction calculations of magic wavelengths for the 2 ${}^{3}{S}_{1}\ensuremath{\rightarrow}2$ ${}^{1}{S}_{0}$ transition of helium isotopes

American Physical Society

journaltitlePhys. Rev. A
titleMagic wavelengths for the helium $2{\phantom{\rule{0.16em}{0ex}}}^{3}{S}_{1}\ensuremath{\rightarrow}2{\phantom{\rule{0.16em}{0ex}}}^{1}{P}_{1}$ forbidden transition

American Physical Society

journaltitlePhys. Rev. A
titleHigh-precision measurements of the $^{87}\mathrm{Rb}$ $D$-line tune-out wavelength

titleProposal for suppressing ac Stark shift in the He(2 ${}^{3}{S}_{1}\ensuremath{\rightarrow}3$ ${}^{3}{S}_{1}$) two-photon transition using magic wavelengths

American Physical Society

journaltitlePhys. Rev. A
titleTune-out wavelength around 413 nm for the helium $2{}^{3}{S}_{1}$ state including relativistic and finite-nuclear-mass corrections

University of Windsor

titleThe variational calculation of the 413 nm 4He tune-out wavelength

abstractThe problem of calculating the tune-out wavelength for an atom interacting with a plane electromagnetic wave is formulated as a zero in the Rayleigh scattering cross section, rather than a zero in the dynamic polarizability. Retardation (finite wavelength) corrections are discussed in the velocity gauge, and possible gauge transformations to a length form are investigated. For the special case of S-states, it is shown that a pure length form exists for the leading pxz retardation correction, even though one does not exist in general. The results of high-precision calculations in Hylleraas coordinates are presented for the tune-out wavelength of helium near the 23S −33P transition at 413 nm.
journaltitleHyperfine Interactions
titleHelium tune-out wavelength: Gauge invariance and retardation corrections

American Physical Society

journaltitlePhys. Rev. A
titleQED and relativistic nuclear recoil corrections to the 413-nm tune-out wavelength for the $2^{3}{S}_{1}$ state of helium

American Physical Society

journaltitlePhys. Rev. A
titleRefractive index and generalized polarizability

American Physical Society

journaltitlePhys. Rev. A
titleHelium energy levels including $m{\ensuremath{\alpha}}^{6}$ corrections

Optica Publishing Group

journaltitleOptics Express
titleTrap frequency measurement with a pulsed atom laser

titleBootstrap Error

The University Of Arizona

titlePolarizability And Magic-zero Wavelength Measurements Of Alkali Atoms

journaltitleArXiv e-prints
titleThe First Measurement of the $2^{3}S\_{1} \rightarrow 3^{3}P - 2^{3}P$ Tune-Out Wavelength in He*
Physics - Atomic Physics,Physics - Optics,81V45

issn2469-9926, 2469-9934
journaltitlePhys. Rev. A
titleTan's contact in a cigar-shaped dilute Bose gas

titleExpansion of harmonically trapped interacting particles and time dependence of the contact

journaltitlePhysical Review Letters
titleMomentum-resolved Observation of Thermal and Quantum Depletion in a Bose Gas

issn0031-9007, 1079-7114
journaltitlePhys. Rev. Lett.
titleVerification of Universal Relations in a Strongly Interacting Fermi Gas

issn0031-9007, 1079-7114
journaltitlePhys. Rev. Lett.
titleMeasurements of Tan’s Contact in an Atomic Bose-Einstein Condensate

issn1745-2473, 1745-2481
journaltitleNature Physics
titleUniversal dynamics of a degenerate unitary Bose gas

titleUniversal prethermal dynamics of Bose gases quenched to unitarity

journaltitleNature Communications
titleObservation of quantum depletion in a non-equilibrium exciton–polariton condensate

issn0031-9007, 1079-7114
journaltitlePhys. Rev. Lett.
titleHanbury Brown and Twiss Bunching of Phonons and of the Quantum Depletion in an Interacting Bose Gas

issn0031-9007, 1079-7114
journaltitlePhys. Rev. Lett.
titleTemperature Dependence of the Universal Contact Parameter in a Unitary Fermi Gas

issn0031-9007, 1079-7114
journaltitlePhys. Rev. Lett.
titleMeasurement of the Homogeneous Contact of a Unitary Fermi Gas

abstractIn many-body systems governed by pairwise contact interactions, a wide range of observables is linked by a single parameter, the two-body contact, which quantifies two-particle correlations. This profound insight has transformed our understanding of strongly interacting Fermi gases. Using Ramsey interferometry, we studied coherent evolution of the resonantly interacting Bose gas, and we show here that it cannot be explained by only pairwise correlations. Our experiments reveal the crucial role of three-body correlations arising from Efimov physics and provide a direct measurement of the associated three-body contact.
issn0036-8075, 1095-9203
titleTwo- and three-body contacts in the unitary Bose gas

issn0031-9007, 1079-7114
journaltitlePhys. Rev. Lett.
titleQuasiparticle Energy in a Strongly Interacting Homogeneous Bose-Einstein Condensate

issn0031-9007, 1079-7114
journaltitlePhys. Rev. Lett.
titleSpectral Response and Contact of the Unitary Fermi Gas

American Physical Society

journaltitlePhys. Rev. X
titleMomentum-Space Atom Correlations in a Mott Insulator

American Physical Society

journaltitlePhys. Rev. A
titleCumulant theory of the unitary Bose gas: Prethermal and Efimovian dynamics

journaltitleNature Communications
titleCoherent quantum depletion of an interacting atom condensate

American Physical Society

journaltitlePhys. Rev. Lett.
titleTwo-Body and Three-Body Contacts for Identical Bosons near Unitarity

issn0031-9007, 1079-7114
journaltitlePhys. Rev. Lett.
titleShort-Time Operator Product Expansion for rf Spectroscopy of a Strongly Interacting Fermi Gas

issn0031-9007, 1079-7114
journaltitlePhys. Rev. Lett.
titleUniversal Relations for Identical Bosons from Three-Body Physics
osons from Thre.pdf:C
Braaten et al. - 2011 - Universal Relations for Identical Bosons from Thre.pdf:application/pdf;Braaten et al. - 2011 - Universal Relations for Identical Bosons from Thre.pdf:C
Braaten et al. - 2011 - Universal Relations for Identical Bosons from Thre.pdf:application/pdf;Braaten et al. - 2011 - Universal Relations for Identical Bosons from Thre.pdf:C
Braaten et al. - 2011 - Universal Relations for Identical Bosons from Thre.pdf:application/pdf

American Physical Society

journaltitlePhys. Rev. A
titleTan's contact as an indicator of completeness and self-consistency of a theory

issn0031-9007, 1079-7114
journaltitlePhys. Rev. Lett.
titleExact Relations for a Strongly Interacting Fermi Gas from the Operator Product Expansion

American Physical Society (APS)

journaltitlePhys. Rev. A
titleUniversal properties of the ultracold Fermi gas

issn1050-2947, 1094-1622
journaltitlePhys. Rev. A
titleParticle distribution tail and related energy formula

Combescot et al. - 2009 - Particle distribution tail and related energy form.pdf:application/pdf

issn1050-2947, 1094-1622
journaltitlePhys. Rev. A
titleGeneral relations for quantum gases in two and three dimensions. II. Bosons and mixtures
Werner and Castin - 2012 - General relations for quantum gases in two and thr.pdf:application/pdf;Werner and Castin - 2012 - General relations for quantum gases in two and thr.pdf:C
Werner and Castin - 2012 - General relations for quantum gases in two and thr.pdf:application/pdf;Werner and Castin - 2012 - General relations for quantum gases in two and thr.pdf:C
Werner and Castin - 2012 - General relations for quantum gases in two and thr.pdf:application/pdf

issn1050-2947, 1094-1622
journaltitlePhys. Rev. A
shorttitleGeneral relations for quantum gases in two and three dimensions
titleGeneral relations for quantum gases in two and three dimensions: Two-component fermions
erner and Castin - 2012 - General relations for quantum gases in two and thr.pdf:application/pdf

journaltitleJournal of Modern Optics
titleA Monte Carlo formulation of the Bogolubov theory

American Physical Society

journaltitlePhys. Rev. A
titleBogoliubov dynamics of condensate collisions using the positive-P representation

American Physical Society

journaltitlePhys. Rev. Lett.
titleBragg Spectroscopy of the Multibranch Bogoliubov Spectrum of Elongated Bose-Einstein Condensates

American Physical Society

journaltitlePhys. Rev. Lett.
titleShort-Distance Correlation Properties of the Lieb-Liniger System and Momentum Distributions of Trapped One-Dimensional Atomic Gases

abstractIt is well known that the momentum distribution of the two-component Fermi gas with large scattering length has a tail proportional to 1=k4 at large k. We show that the magnitude of this tail is equal to the adiabatic derivative of the energy with respect to the reciprocal of the scattering length, multiplied by a simple constant. This result holds at any temperature (as long as the effective interaction radius is negligible) and any large scattering length; it also applies to few-body cases. We then show some more connections between the 1=k4 tail and various physical quantities, including the pressure at thermal equilibrium and the rate of change of energy in a dynamic sweep of the inverse scattering length.
journaltitleAnnals of Physics
titleLarge momentum part of a strongly correlated Fermi gas

abstractFor a two-component Fermi gas in the unitarity limit (ie, with inﬁnite scattering length), there is a well-known virial theorem, ﬁrst shown by J. E. Thomas et al, Phys. Rev. Lett. 95, 120402 (2005). A few people rederived this result, and extended it to few-body systems, but their results are all restricted to the unitarity limit. Here I show that there is a generalized virial theorem for FINITE scattering lengths. I also generalize an exact result concerning the pressure, ﬁrst shown in cond-mat/0508320, to the case of imbalanced populations.
journaltitleAnnals of Physics
titleGeneralized Virial Theorem and Pressure Relation for a strongly correlated Fermi gas
Condensed Matter - Statistical Mechanics

journaltitleAnnals of Physics
titleEnergetics of a strongly correlated Fermi gas

American Physical Society

journaltitlePhys. Rev. Lett.
titlePrecise Determination of the Structure Factor and Contact in a Unitary Fermi Gas

American Physical Society

journaltitlePhys. Rev. Lett.
titleCoherence and Clock Shifts in Ultracold Fermi Gases with Resonant Interactions

American Physical Society

journaltitlePhys. Rev. Lett.
titleTheory of rf-Spectroscopy of Strongly Interacting Fermions

journaltitleNature Communications
titleObservation of dynamic atom-atom correlation in liquid helium in real space

American Physical Society

journaltitlePhys. Rev. B
titleCondensate, momentum distribution, and final-state effects in liquid ${}^{4}\mathrm{He}$

journaltitleJournal of Low Temperature Physics
titleCondensate Fraction in Liquid $^4$He

American Physical Society

journaltitlePhys. Rev. Lett.
titleObservation of Atom Pairs in Spontaneous Four-Wave Mixing of Two Colliding Bose-Einstein Condensates

journaltitleNature physics
titleHanbury Brown and Twiss correlations across the Bose-Einstein condensation threshold

journaltitleSIAM Review
titlePower-law distributions in empirical data

annotationComment: Published in at http://dx.doi.org/10.1214/13-AOAS710 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
journaltitleThe Annals of Applied Statistics
notearXiv: 1208.3524
titlePower-law distributions in binned empirical data

issn1434-6028, 1434-6036
journaltitleThe European Physical Journal B
titleProblems with fitting to the power-law distribution

journaltitlePLOS ONE
titleFitting power-laws in empirical data with estimators that work for all exponents

American Physical Society

journaltitlePhys. Rev. Lett.
titleSub-Poissonian Number Differences in Four-Wave Mixing of Matter Waves

journaltitleArXiv (forthcoming in Nature Scientific Reports)
titleSurvival of the quantum depletion of a condensate after release from a harmonic trap in theory and experiment

American Physical Society

journaltitlePhys. Rev. Lett.
titleViolation of the Cauchy-Schwarz Inequality with Matter Waves

American Physical Society

journaltitlePhys. Rev. Lett.
titleDirect Observation of the Phonon Energy in a Bose-Einstein Condensate by Tomographic Imaging

titleObservation of Bose–Einstein condensates in an Earth-orbiting research lab

journaltitleNature Communications
titleExperimental realization of an optical second with strontium lattice clocks

titleAtom Chips

American Physical Society

journaltitlePRX Quantum
titlePerformance-Optimized Components for Quantum Technologies via Additive Manufacturing

journaltitleAVS Quantum Science
titleRoadmap on Atomtronics: State of the art and perspective

American Physical Society

journaltitlePhys. Rev. D
titleGravitational wave detection with optical lattice atomic clocks

journaltitleNature Physics
titleHunting for topological dark matter with atomic clocks

journaltitleJournal of Geodesy
titleAbsolute airborne gravimetry with a cold atom sensor

American Physical Society

journaltitlePhys. Rev. Lett.
titleSimultaneous Precision Gravimetry and Magnetic Gradiometry with a Bose-Einstein Condensate: A High Precision, Quantum Sensor

American Physical Society

journaltitlePRX Quantum
titleNon-Gaussianity as a Signature of a Quantum Theory of Gravity

American Physical Society

journaltitlePhys. Rev. A
titleSpinor Bose-Einstein condensates of positronium

titleLaser cooling of antihydrogen atoms

American Physical Society

journaltitlePhys. Rev. Lett.
titleCold-Atom Temporally Multiplexed Quantum Memory with Cavity-Enhanced Noise Suppression

journaltitleJournal of Modern Optics
titleQuantum computing with neutral atoms

titlePhotonic quantum state transfer between a cold atomic gas and a crystal

American Physical Society

journaltitlePhys. Rev. A
titleQuantum simulation of cosmic inflation in two-component Bose-Einstein condensates

American Physical Society

journaltitlePRX Quantum
titleFate of the False Vacuum: Finite Temperature, Entropy, and Topological Phase in Quantum Simulations of the Early Universe

American Physical Society

journaltitlePhys. Rev. A
titleOptical lattice platform for the Sachdev-Ye-Kitaev model

journaltitleReports on Progress in Physics
titleQuantum simulations of lattice gauge theories using ultracold atoms in optical lattices

titleQuantized refrigerator for an atomic cloud

American Physical Society

journaltitleRev. Mod. Phys.
titleQuantum resource theories

MIT press

titleEnergy and Civilization: A History
notePersonal communication in attendance at a conference in Singapore, 2018.

U.S. Government Printing Office

noteThe abstract for this report gives an incomplete citation of a report published in 1968, which the present author could not obtain.
titleIsotope Production and Development
nology/7kBPAAAAYAAJ?hl=en   gbpv=0

titleThe Precipice: Existential Risk and the Future of Humanity

titleMore Is Different: Broken symmetry and the nature of the hierarchical structure of science

journaltitleInternational Journal of Theoretical Physics
titleSimulating Physics with Computers

American Physical Society

journaltitlePhys. Rev. Lett.
titleFour Postulates of Quantum Mechanics Are Three

abstractWe take the Bose-Hubbard model to illustrate exact diagonalization techniques in a pedagogical way. We follow the road of first generating all the basis vectors, then setting up the Hamiltonian matrix with respect to this basis, and finally using the Lanczos algorithm to solve low lying eigenstates and eigenvalues. Emphasis is placed on how to enumerate all the basis vectors and how to use the hashing trick to set up the Hamiltonian matrix or matrices corresponding to other quantities. Although our route is not necessarily the most efficient one in practice, the techniques and ideas introduced are quite general and may find use in many other problems.
issn0143-0807, 1361-6404
journaltitleEuropean Journal of Physics
shorttitleExact Diagonalization
titleExact Diagonalization: The Bose-Hubbard Model as an Example
Condensed Matter - Statistical Mechanics,Mathematical Physics,Quantum Physics

journaltitleAnnals of Physics
titleThe density-matrix renormalization group in the age of matrix product states

abstractWe describe the Density Matrix Renormalization Group algorithms for time dependent and time independent Hamiltonians. This paper is a brief but comprehensive introduction to the subject for anyone willing to enter in the field or write the program source code from scratch. An open source version of the code can be found at: http://qti.sns.it/dmrg/phome.html .
issn15461955, 15461963
journaltitleJournal of Computational and Theoretical Nanoscience
titleDensity Matrix Renormalization Group for Dummies

American Physical Society

journaltitlePhys. Rev. Lett.
titleTensor Network Renormalization Yields the Multiscale Entanglement Renormalization Ansatz

Cambridge University Press

titleQuantum Monte Carlo Approaches for Correlated Systems

titleSolving the quantum many-body problem with artificial neural networks

titleHamiltonian Simulation by Qubitization

American Physical Society

journaltitlePhys. Rev. X
titleQuantum Chemistry Calculations on a Trapped-Ion Quantum Simulator

titleQuantum simulation of a Fermi-Hubbard model using a semiconductor quantum dot array

journaltitleAdvanced Quantum Technologies
titleMicrocavity Polaritons for Quantum Simulation

journaltitleApplied Physics Letters
titleSuperconducting quantum many-body circuits for quantum simulation and computing

journaltitlenpj Quantum Information
titleHardware-efficient fermionic simulation with a cavity-QED system

titleQuantum circuits with many photons on a programmable nanophotonic chip

American Physical Society

journaltitleRev. Mod. Phys.
titleQuantum simulation

titleQuantum supremacy using a programmable superconducting processor

issn0031-9007, 1079-7114
journaltitlePhysical Review Letters
titleQuantum Logic Gates in Optical Lattices

titleQuantum computing with neutral atoms

abstractAs quantum computers improve in the number of qubits and fidelity, the question of when they surpass state-of-the-art classical computation for a well-defined computational task is attracting much attention. The leading candidate task for this quantum computational supremacy milestone entails sampling from the output distribution defined by a random quantum circuit. We perform this task on conventional computers for larger circuits than in previous results, by trading circuit fidelity for computational resources to match the fidelity of a given quantum computer. By using publicly available Google Cloud Computing, we can price such simulations and enable comparisons by total cost across multiple hardware types. We simulate approximate sampling from the output of a circuit with 7 × 8 qubits and depth 1 + 40 + 1 by producing one million bitstring probabilities with fidelity 0.5%, at an estimated cost of $35184. The simulation costs scale linearly with fidelity, and using this scaling we estimate that extending circuit depth to 1 + 48 + 1 increases costs to one million dollars. Yet, for a quantum computer, approximate sampling would take seconds. We pay particular attention to validating simulation results. Finally, we explain why recently refined benchmarks substantially increase computation cost of leading simulators, halving the circuit depth that can be simulated within the same time.
titleQuantum Supremacy Is Both Closer and Farther than It Appears

titleSqueezed States in a Bose-Einstein Condensate

issn0034-6861, 1539-0756
journaltitleReviews of Modern Physics
titleDynamics of Bose-Einstein Condensates in Optical Lattices

issn0031-9007, 1079-7114
journaltitlePhysical Review Letters
titleExploring Phase Coherence in a 2D Lattice of Bose-Einstein Condensates

American Physical Society

journaltitlePhys. Rev. Lett.
titleCold Bosonic Atoms in Optical Lattices

issn0001-8732, 1460-6976
journaltitleAdvances in Physics
shorttitleUltracold Atomic Gases in Optical Lattices
titleUltracold Atomic Gases in Optical Lattices: Mimicking Condensed Matter Physics and Beyond

titleExperimental realization of the topological Haldane model with ultracold fermions

journaltitleNew Journal of Physics
titleUltracold quantum gases in triangular optical lattices

American Physical Society

journaltitlePhys. Rev. Lett.
titleUltracold Atoms in a Tunable Optical Kagome Lattice

American Physical Society

journaltitlePhys. Rev. Lett.
titleMatter-Wave Diffraction from a Quasicrystalline Optical Lattice

journaltitleNature Physics
titleA disordered insulator in an optical lattice

issn0028-0836, 1476-4687
titleQuantum Critical Behaviour at the Many-Body Localization Transition

issn1050-2947, 1094-1622
journaltitlePhysical Review A
titleSite-Resolved Imaging of Ytterbium Atoms in a Two-Dimensional Optical Lattice

issn0028-0836, 1476-4687
titleSingle-Atom-Resolved Fluorescence Imaging of an Atomic Mott Insulator

issn1050-2947, 1094-1622
journaltitlePhysical Review A
titleQuantum Gas Microscopy with Spin, Atom-Number, and Multilayer Readout

issn0028-0836, 1476-4687
titleA Quantum Gas Microscope for Detecting Single Atoms in a Hubbard-Regime Optical Lattice

issn0031-9007, 1079-7114
journaltitlePhysical Review Letters
titleQuantum-Gas Microscope for Fermionic Atoms

issn1745-2473, 1745-2481
journaltitleNature Physics
titleSingle-Atom Imaging of Fermions in a Quantum-Gas Microscope

abstractAccessing new regimes in quantum simulation requires the development of new techniques for quantum state preparation. We demonstrate the quantum state engineering of a strongly correlated many-body state of the two-component repulsive Fermi-Hubbard model on a square lattice. Our scheme makes use of an ultralow entropy doublon band insulator created through entropy redistribution. After isolating the band insulator, we change the underlying potential to expand it into a half-filled system. The final many-body state realized shows strong antiferromagnetic correlations and a temperature below the exchange energy. We observe an increase in entropy, which we find is likely caused by the many-body physics in the last step of the scheme. This technique is promising for low-temperature studies of cold-atom-based lattice models.
issn0031-9007, 1079-7114
journaltitlePhysical Review Letters
titleQuantum State Engineering of a Hubbard System with Ultracold Fermions
Condensed Matter - Quantum Gases

issn0028-0836, 1476-4687
titleQuantum Simulation of Antiferromagnetic Spin Chains in an Optical Lattice

issn0028-0836, 1476-4687
titleDirect Observation of Second-Order Atom Tunnelling

issn0036-8075, 1095-9203
titleObservation of Correlated Particle-Hole Pairs and String Order in Low-Dimensional Mott Insulators

abstractWe demonstrate that the transition from a superfluid to a Mott insulator in the Bose-Hubbard model can be induced by an oscillating force through an effective renormalization of the tunneling matrix element. The mechanism involves adiabatic following of Floquet states, and can be tested experimentally with Bose-Einstein condensates in periodically driven optical lattices. Its extension from small to very large systems yields nontrivial information on the condensate dynamics.
issn0031-9007, 1079-7114
journaltitlePhysical Review Letters
titleSuperfluid-Insulator Transition in a Periodically Driven Optical Lattice

issn0028-0836, 1476-4687
titleA Mott Insulator of Fermionic Atoms in an Optical Lattice

issn0036-8075, 1095-9203
titleItinerant Ferromagnetism in a Fermi Gas of Ultracold Atoms

issn0028-0836, 1476-4687
titlePinning Quantum Phase Transition for a Luttinger Liquid of Strongly Interacting Bosons

issn0028-0836, 1476-4687
titleDicke Quantum Phase Transition with a Superfluid Gas in an Optical Cavity

issn0028-0836, 1476-4687
titleSupersolid Formation in a Quantum Gas Breaking a Continuous Translational Symmetry

titleQuantum Phases from Competing Short- and Long-Range Interactions in an Optical Lattice

Cambridge University Press

titleQuantum Phase Transitions

issn0028-0836, 1476-4687
titleThe `Higgs' Amplitude Mode at the Two-Dimensional Superfluid/Mott Insulator Transition

American Association for the Advancement of Science

abstractMost of our knowledge of quantum phase transitions (QPTs)—which occur as a result of quantum, rather than thermal, fluctuations—comes from experiments performed in equilibrium conditions. Less is known about the dynamics of a system going through a QPT, which have been hypothesized to depend on a single time and length scale. Clark et al. confirmed this hypothesis in a gas of cesium atoms in an optical lattice, which was shaken progressively faster to drive the gas through a QPT.Science, this issue p. 606The dynamics of many-body systems spanning condensed matter, cosmology, and beyond are hypothesized to be universal when the systems cross continuous phase transitions. The universal dynamics are expected to satisfy a scaling symmetry of space and time with the crossing rate, inspired by the Kibble-Zurek mechanism. We test this symmetry based on Bose condensates in a shaken optical lattice. Shaking the lattice drives condensates across an effectively ferromagnetic quantum phase transition. After crossing the critical point, the condensates manifest delayed growth of spin fluctuations and develop antiferromagnetic spatial correlations resulting from the sub-Poisson distribution of the spacing between topological defects. The fluctuations and correlations are invariant in scaled space-time coordinates, in support of the scaling symmetry of quantum critical dynamics.
titleUniversal space-time scaling symmetry in the dynamics of bosons across a quantum phase transition

issn1745-2473, 1745-2481
journaltitleNature Physics
titleTopological Quantum Matter with Ultracold Gases in Optical Lattices

issn1050-2947, 1094-1622
journaltitlePhysical Review A
titleNonequilibrium Topological Phase Transitions in Two-Dimensional Optical Lattices

issn0031-9007, 1079-7114
journaltitlePhysical Review Letters
titleRealization of the Hofstadter Hamiltonian with Ultracold Atoms in Optical Lattices

abstractThe interplay of magnetic fields and interacting particles can lead to exotic phases of matter exhibiting topological order and high degrees of spatial entanglement. While these phases were discovered in a solid-state setting, recent techniques have enabled the realization of gauge fields in systems of ultracold neutral atoms, offering a new experimental paradigm for studying these novel states of matter. This complementary platform holds promise for exploring exotic physics in fractional quantum Hall systems due to the microscopic manipulation and precision possible in cold atom systems. However, these experiments thus far have mostly explored the regime of weak interactions. Here, we show how strong interactions can modify the propagation of particles in a $2\times N$, real-space ladder governed by the Harper-Hofstadter model. We observe inter-particle interactions affect the populating of chiral bands, giving rise to chiral dynamics whose multi-particle correlations indicate both bound and free-particle character. The novel form of interaction-induced chirality observed in these experiments demonstrates the essential ingredients for future investigations of highly entangled topological phases of many-body systems.
issn0028-0836, 1476-4687
titleMicroscopy of the Interacting Harper-Hofstadter Model in the Few-Body Limit
Condensed Matter - Quantum Gases,Quantum Physics

American Physical Society

journaltitlePhys. Rev. Lett.
titleRealizing the Harper Hamiltonian with Laser-Assisted Tunneling in Optical Lattices

issn0031-9007, 1079-7114
journaltitlePhysical Review Letters
titleExperimental Realization of Strong Effective Magnetic Fields in an Optical Lattice

abstractCan high energy physics be simulated by low-energy, non-relativistic, many-body systems, such as ultracold atoms? Such ultracold atomic systems lack the type of symmetries and dynamical properties of high energy physics models: in particular, they manifest neither local gauge invariance nor Lorentz invariance, which are crucial properties of the quantum field theories which are the building blocks of the standard model of elementary particles.
issn0034-4885, 1361-6633
journaltitleReports on Progress in Physics
titleQuantum Simulations of Lattice Gauge Theories Using Ultracold Atoms in Optical Lattices
Condensed Matter - Quantum Gases,High Energy Physics - Lattice,High Energy Physics - Theory,Quantum Physics

journaltitleNature Physics
titleFloquet approach to $\mathbb{Z}_2$ lattice gauge theories with ultracold atoms in optical lattices

abstractMany phenomena occurring in strongly correlated quantum systems still await conclusive explanations. The absence of isolated free quarks in nature is an example. It is attributed to quark confinement, whose origin is not yet understood. The phase diagram for nuclear matter at general temperatures and densities, studied in heavy-ion collisions, is not settled. Finally, we have no definitive theory of high-temperature superconductivity. Though we have theories that could underlie such physics, we lack the tools to determine the experimental consequences of these theories. Quantum simulators may provide such tools. Here we show how to engineer quantum simulators of non-Abelian lattice gauge theories. The systems we consider have several applications: they can be used to mimic quark confinement or to study dimer and valence-bond states (which may be relevant for high-temperature superconductors).
journaltitleNature Communications
titleSimulations of Non-Abelian Gauge Theories with Optical Lattices
Condensed Matter - Quantum Gases,Condensed Matter - Strongly Correlated Electrons,High Energy Physics - Lattice,High Energy Physics - Theory,Quantum Physics

journaltitleNew Journal of Physics
titleSauter-Schwinger effect with a quantum gas

issn1050-2947, 1094-1622
journaltitlePhysical Review A
titleEntanglement in a Simple Quantum Phase Transition

issn0028-0836, 1476-4687
titleScaling of Entanglement Close to a Quantum Phase Transition

issn1745-2473, 1745-2481
journaltitleNature Physics
titleTopological Entanglement Entropy of a Bose–Hubbard Spin Liquid

issn1745-2473, 1745-2481
journaltitleNature Physics
titleIdentifying Topological Order by Entanglement Entropy

journaltitleAdvances in Physics
titleFrom quantum chaos and eigenstate thermalization to statistical mechanics and thermodynamics

journaltitleJournal of physics A: Mathematical and Theoretical
titleThe role of quantum information in thermodynamics - A topical review

issn1063-651X, 1095-3787
journaltitlePhysical Review E
titleChaos and Quantum Thermalization

issn0034-6861, 1539-0756
journaltitleReviews of Modern Physics
titleEntanglement in Many-Body Systems

issn1745-2473, 1745-2481
journaltitleNature Physics
titleQuantum Many-Body Systems out of Equilibrium

abstractEntanglement is a key feature of many-body quantum systems. Measuring the entropy of different partitions of a quantum system provides a way to probe its entanglement structure. Here, we present and experimentally demonstrate a protocol for measuring the second-order Rényi entropy based on statistical correlations between randomized measurements. Our experiments, carried out with a trapped-ion quantum simulator with partition sizes of up to 10 qubits, prove the overall coherent character of the system dynamics and reveal the growth of entanglement between its parts, in both the absence and presence of disorder. Our protocol represents a universal tool for probing and characterizing engineered quantum systems in the laboratory, which is applicable to arbitrary quantum states of up to several tens of qubits.
issn0036-8075, 1095-9203
titleProbing Rényi Entanglement Entropy via Randomized Measurements

abstractWe have analyzed measurement of Re´nyi entropies of 1D bosons in an optical lattice during a quench, by using techniques currently available in quantum gas microscope experiments. Such a tool can be used to verify the coherence and accuracy of a 1D and 2D quantum simulator and determine the entanglement growth in a quantum quench, helping the experiments to diagnose regimes where dynamics can be realized that are not accessible to present classical computations.
issn0031-9007, 1079-7114
journaltitlePhysical Review Letters
titleMeasuring Entanglement Growth in Quench Dynamics of Bosons in an Optical Lattice

issn0031-9007, 1079-7114
journaltitlePhysical Review Letters
titleMultipartite Entanglement Detection in Bosons

issn1050-2947, 1094-1622
journaltitlePhysical Review A
titleDetection and Characterization of Multipartite Entanglement in Optical Lattices

issn0031-9007, 1079-7114
journaltitlePhysical Review Letters
titleTime-Resolved Observation of Thermalization in an Isolated Quantum System
Condensed Matter - Quantum Gases,Condensed Matter - Soft Condensed Matter,Quantum Physics

titleQuantum thermalization through entanglement in an isolated many-body system

journaltitlePhysical Review
titleAbsence of diffusion in certain random lattices

abstractWe review some recent developments in the statistical mechanics of isolated quantum systems. We provide a brief introduction to quantum thermalization, paying particular attention to the eigenstate thermalization hypothesis (ETH) and the resulting single-eigenstate statistical mechanics. We then focus on a class of systems that fail to quantum thermalize and whose eigenstates violate the ETH: These are the many-body Anderson-localized systems; their long-time properties are not captured by the conventional ensembles of quantum statistical mechanics. These systems can forever locally remember information about their local initial conditions and are thus of interest for possibilities of storing quantum information. We discuss key features of many-body localization (MBL) and review a phenomenology of the MBL phase. Single-eigenstate statistical mechanics within the MBL phase reveal dynamically stable ordered phases, and phase transitions among them, that are invisible to equilibrium statistical mechanics and can occur at high energy and low spatial dimensionality, where equilibrium ordering is forbidden.
issn1947-5454, 1947-5462
journaltitleAnnual Review of Condensed Matter Physics
titleMany-Body Localization and Thermalization in Quantum Statistical Mechanics

titleObservation of dipolar spin-exchange interactions with lattice-confined polar molecules

titleObservation of magnetically tunable Feshbach resonances in ultracld $^{23}$Na$^{40}$K + $^{40}$K collisions

issn0031-9007, 1079-7114
journaltitlePhysical Review Letters
titleResonant Dipolar Collisions of Ultracold Molecules Induced by Microwave Dressing

American Physical Society

journaltitlePhys. Rev. A
titleSchemes for robust quantum computation with polar molecules

journaltitleNature Physics
titleA toolbox for lattice-spin models with polar molecules

issn0031-9007, 1079-7114
journaltitlePhysical Review Letters
titleSite-Resolved Imaging of Fermionic Li 6 in an Optical Lattice

abstractWe demonstrate site-resolved imaging of a strongly correlated quantum system without relying on laser-cooling techniques during fluorescence imaging. We observed the formation of Mott shells in the insulating regime and realized thermometry on the atomic cloud. This work proves the feasibility of the noncooled approach and opens the door to extending the detection technology to new atomic species.
issn2469-9926, 2469-9934
journaltitlePhysical Review A
titleSite-Resolved Imaging of a Bosonic Mott Insulator Using Ytterbium Atoms

American Physical Society

journaltitlePhys. Rev.
titleThe Evaluation of the Collision Matrix

abstractKnowledge of all correlation functions of a system is equivalent to solving the corresponding many-body problem. Already a finite set of correlation functions can be sufficient to describe a quantum many-body system if correlations factorise, at least approximately. While being a powerful theoretical concept, an implementation based on experimental data has so far remained elusive. Here, this is achieved by applying it to a non-trivial quantum many-body problem: A pair of tunnel-coupled one-dimensional atomic superfluids. From measured interference patterns we extract phase correlation functions up to tenth order and analyse if, and under which conditions, they factorise. This characterises the essential features of the system, the relevant quasiparticles, their interactions and possible topologically distinct vacua. We verify that in thermal equilibrium the physics can be described by the quantum sine-Gordon model, relevant for a wide variety of disciplines from particle to condensed-matter physics. Our experiment establishes a general method to analyse quantum many-body systems in experiments. It represents a crucial ingredient towards the implementation and verification of quantum simulators.
issn0028-0836, 1476-4687
titleExperimental characterization of a quantum many-body system via higher-order correlations
Condensed Matter - Quantum Gases,Condensed Matter - Statistical Mechanics,Quantum Physics

abstractThe recent advances in single atom detection and manipulation in experiments with ultracold quantum gases are reviewed. The discussion starts with the basic principles of trapping, cooling and detecting single ions and atoms. The realization of single atom detection in ultracold quantum gases is presented in detail and the employed methods, which are based on light scattering, electron scattering, field ionization and direct neutral particle detection are discussed. The microscopic coherent manipulation of single atoms in a quantum gas is also covered. Various examples are given in order to highlight the power of these approaches to study many-body quantum systems.
issn0034-4885, 1361-6633
journaltitleReports on Progress in Physics
shorttitleSingle Atom Detection in Ultracold Quantum Gases
titleSingle Atom Detection in Ultracold Quantum Gases: A Review of Current Progress

American Physical Society

journaltitlePhys. Rev. A
titleSpin-resolved single-atom imaging of $^{6}\mathrm{Li}$ in free space

titleSpatial quantum noise interferometry in expanding ultracold atom clouds

American Physical Society

journaltitlePhys. Rev. Lett.
titleMomentum-Space Correlations of a One-Dimensional Bose Gas

journaltitleNew Journal of Physics
titleSingle-particle-sensitive imaging of freely propagating ultracold atoms

journaltitlePhysical Review
titleThe Structure of Electronic Excitation Levels in Insulating Crystals

abstractThe electronic ground state of a periodic system is usually described in terms of extended Bloch orbitals, simultaneous eigenstates of the periodic Hamiltonian and of the direct lattice translations. An alternative representation in terms of localized orbitals has been introduced by Gregory Wannier in 1937; besides its theoretical relevance in several areas of solid-state theory, it has gained recent prominence due to its connection with the Berry-phase theory of bulk polarization, the interest in linear-scaling approaches, and with the development of general algorithms to derive Wannier functions in the framework of first-principles electronic structure calculations. The connection between the Bloch representation and the Wannier representation is realized by families of transformations in a continuous space of unitary matrices, carrying a large degree of arbitrariness. A few years ago we have developed a localization algorithm that allows one to iteratively transform the extended Bloch orbitals of a first-principles calculation into a unique set of maximally-localized Wannier functions (MLWFs), extending and encompassing Boys formulation for molecules to the solid-state case. The localization algorithm is independent of the single-particle electronic structure approach adopted, or the choice of basis set, and it is straightforwardly applied to extended or periodic solids and to isolated systems. Additionally, a novel disentanglement procedure allows to extract a maximally-connected manifold of any chosen dimension from a given energy window, leading to the extension of the original algorithm to the case of systems without gaps (e.g., metals) and removing the limitation to isolated groups of bands separated by gaps from higher and lower manifolds. In this Highlight we will outline and summarize the main results of the theory and algorithm underlying the maximally-localized Wannierfunctions representation, and review some of the applications that have since appeared in the literature.
titleAn Introduction to Maximally-Localized Wannier Functions

abstractWe present a theoretical study of Bose condensation and specific heat of non-interacting bosons in finite lattices in harmonic potentials in one, two, and three dimensions. We numerically diagonalize the Hamiltonian to obtain the energy levels of the systems. Using the energy levels thus obtained, we investigate the temperature dependence, dimensionality effects, lattice size dependence, and evolution to the bulk limit of the condensate fraction and the specific heat. Some preliminary results on the specific heat of fermions in optical lattices are also presented. The results obtained are contextualized within the current experimental and theoretical scenario.
issn1434-6060, 1434-6079
journaltitleThe European Physical Journal D
titleStudies of Bosons in Optical Lattices in a Harmonic Potential

American Physical Society

journaltitlePhys. Rev. A
titleSingle-atom-resolved probing of lattice gases in momentum space

American Physical Society

journaltitlePhys. Rev. A
titleStudying the low-entropy Mott transition of bosons in a three-dimensional optical lattice by measuring the full momentum-space density

issn1050-2947, 1094-1622
journaltitlePhysical Review A
titleLocalization in Momentum Space of Ultracold Atoms in Incommensurate Lattices