Homogeneous Atomic Fermi Gases

Abstract

We report on the creation of homogeneous Fermi gases of ultracold atoms in a uniform potential. In the momentum distribution of a spin-polarized gas, we observe the emergence of the Fermi surface and the saturated occupation of one particle per momentum state. This directly confirms Pauli blocking in momentum space. For the spin-balanced unitary Fermi gas, we observe spatially uniform pair condensates. For thermodynamic measurements, we introduce a hybrid potential that is harmonic in one dimension and uniform in the other two. The spatially resolved compressibility reveals the superfluid transition in a spin-balanced Fermi gas, saturation in a fully polarized Fermi gas, and strong attraction in the polaronic regime of a partially polarized Fermi gas.

References in corpus (46)

• Theory of ultracold Fermi gases
• Observation of resonance condensation of fermionic atom pairs
• Condensation of Pairs of Fermionic Atoms Near a Feshbach Resonance
• A Mott insulator of fermionic atoms in an optical lattice
• Pairing and Phase Separation in a Polarized Fermi Gas
• Fermionic Superfluidity with Imbalanced Spin Populations and the Quantum Phase Transition to the Normal State
• A quasi-pure Bose-Einstein condensate immersed in a Fermi sea
• Bose-Einstein condensation of atoms in a uniform potential
• Metallic and Insulating Phases of Repulsively Interacting Fermions in a 3D Optical Lattice
• Revealing the Superfluid Lambda Transition in the Universal Thermodynamics of a Unitary Fermi Gas
• Observation of Fermi Polarons in a Tunable Fermi Liquid of Ultracold Atoms
• Exploring the Thermodynamics of a Universal Fermi Gas
• Fermi-Hubbard physics with atoms in an optical lattice
• Spin-Imbalance in a One-Dimensional Fermi Gas
• The Unitary Fermi Gas: From Monte Carlo to Density Functionals
• Metastability and Coherence of Repulsive Polarons in a Strongly Interacting Fermi Mixture
• Attractive and repulsive Fermi polarons in two dimensions
• Observation of antiferromagnetic correlations in the Hubbard model with ultracold atoms
• Observation of Phase Separation in a Strongly-Interacting Imbalanced Fermi Gas
• Spin and Charge Resolved Quantum Gas Microscopy of Antiferromagnetic Order in Hubbard Chains
• The Equation of State of a Low-Temperature Fermi Gas with Tunable Interactions
• Observation of Spatial Charge and Spin Correlations in the 2D Fermi-Hubbard Model
• Site-resolved measurement of the spin-correlation function in the Hubbard model
• Phase diagram of a two-component Fermi gas with resonant interactions
• Collective Oscillations of an Imbalanced Fermi Gas: Axial Compression Modes and Polaron Effective Mass
• Critical Dynamics of Spontaneous Symmetry Breaking in a Homogeneous Bose gas
• Emergence of coherence in a uniform quasi-two-dimensional Bose gas
• Free fermion antibunching in a degenerate atomic Fermi gas released from an optical lattice
• Yang-Yang thermodynamics on an atom chip
• Microscopic Observation of Pauli Blocking in Degenerate Fermionic Lattice Gases
• Imbalanced Feshbach-resonant Fermi gases
• Site-resolved imaging of a fermionic Mott insulator
• Determination of the Superfluid Gap in Atomic Fermi Gases by Quasiparticle Spectroscopy
• Tomographic RF Spectroscopy of a Trapped Fermi Gas at Unitarity
• Pauli Blocking of Collisions in a Quantum Degenerate Atomic Fermi Gas
• Bose-Einstein condensation into non-equilibrium states studied by condensate focusing
• Observation of the Presuperfluid Regime in a Two-Dimensional Bose Gas
• Suppression of Density Fluctuations in a Quantum Degenerate Fermi Gas
• Observation of 2D fermionic Mott insulators of ${}^{40}$K with single-site resolution
• From Planar Solitons to Vortex Rings and Lines: Cascade of Solitonic Excitations in a Superfluid Fermi Gas
• Determination of the Equation of State of a Two-Component Fermi Gas at Unitarity
• Matter wave Fourier optics with a strongly interacting two-dimensional Fermi gas
• Quantum Joule-Thomson Effect in a Saturated Homogeneous Bose Gas
• Spin Transport in Polaronic and Superfluid Fermi Gases
• Direct observation of the Fermi surface in an ultracold atomic gas
• Multiple scattering dynamics of fermions at an isolated p-wave resonance

Cited by in corpus (175)

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• Probing the Berry Curvature and Fermi Arcs of a Weyl Circuit
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• The Fulde-Ferrell-Larkin-Ovchinnikov state for ultracold fermions in lattice and harmonic potentials: a review
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• Photo-induced two-body loss of ultracold molecules
• Spectral response and contact of the unitary Fermi gas
• Noninteracting fermions in a trap and random matrix theory
• Collisions of ultracold molecules in bright and dark optical dipole traps
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• Universal Sound Diffusion in a Strongly Interacting Fermi Gas
• Designing Arbitrary One-dimensional Potentials on an Atom Chip
• Excitation Spectrum and Superfluid Gap of an Ultracold Fermi Gas
• Contact and sum-rules in a near-uniform Fermi gas at unitarity
• Topological Triply Degenerate Points Induced by Spin-Tensor-Momentum Couplings
• Entanglement Entropy and Full Counting Statistics for $2d$-Rotating Trapped Fermions
• Engineering Non-Hermitian Skin Effect with Band Topology in Ultracold Gases
• Multicritical edge statistics for the momenta of fermions in non-harmonic traps
• Resonant dipolar collisions of ultracold molecules induced by microwave dressing
• Quenched dynamics and spin-charge separation in an interacting topological lattice
• Anisotropic polarizability of erbium atoms
• Vortex Mass in a Superfluid
• Theoretical Prediction of Non-Hermitian Skin Effect in Ultracold Atom Systems
• Exceeding the Landau superflow speed limit with topological Bogoliubov Fermi surfaces
• Magnetic phase transition in a mixture of two interacting Bose gases at finite temperature
• Finite-temperature equation of state of polarized fermions at unitarity
• Counting statistics for non-interacting fermions in a $d$-dimensional potential
• Thermography of the superfluid transition in a strongly interacting Fermi gas
• Thermal crossover, transition, and coexistence in Fermi polaronic spectroscopies
• Universal phase diagram and scaling functions of imbalanced Fermi gases
• The contact in the unitary Fermi gas across the superfluid phase transition
• Full counting statistics for interacting trapped fermions
• From single-particle excitations to sound waves in a box-trapped atomic Bose-Einstein condensate
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• Theory of Non-Interacting Fermions and Bosons in the Canonical Ensemble
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• Mesoscopic quantum superpositions in bimodal Bose-Einstein condensates: decoherence and strategies to counteract it
• Turbulent relaxation to equilibrium in a two-dimensional quantum vortex gas
• Probing the bond order wave phase transitions of the ionic Hubbard model by superlattice modulation spectroscopy
• Thermodynamics of dilute Bose gases: Beyond mean-field theory for binary mixtures of Bose-Einstein condensate
• Spin-polarized droplets in the unitary Fermi gas
• On the Stability of the Repulsive Fermi Gas with Contact Interactions
• Various Topological Mott insulators in strongly-interacting boson system in one-dimensional superlattice
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• Instability of Fulde-Ferrell-Larkin-Ovchinnikov states in three and two dimensions
• Absence of heating in a uniform Fermi gas created by periodic driving
• In-situ Imaging of a Single-Atom Wave Packet in Continuous Space
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• Fermi polaron revisited: polaron-molecule transition and coexistence
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• Eliminating the wave function singularity for ultracold atoms by similarity transformation
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• Quantum critical thermal transport in the unitary Fermi gas
• Optical control of the density and spin spatial profiles of a planar Bose gas
• Pattern formation in one-dimensional polaron systems and temporal orthogonality catastrophe
• Droplet under confinement: Competition and coexistence with soliton bound state
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• Non-interacting fermions in hard-edge potentials
• Robust nuclear spin entanglement via dipolar interactions in polar molecules
• Local Photoemission Spectra and Effects of Spatial Inhomogeneity in the BCS-BEC Crossover Regime of a Trapped Ultracold Fermi Gas
• Spin-squeezed atomic crystal
• From the moving piston to the dynamical Casimir effect: explorations with shaken condensates
• Topological Edge-State Manifestation of Interacting 2D Condensed Boson-Lattice Systems in a Harmonic Trap
• Color superfluidity of neutral ultra-cold fermions in the presence of color-flip and color-orbit fields
• Dynamic high-resolution optical trapping of ultracold atoms
• The strongly driven Fermi polaron
• Equations of state from individual one-dimensional Bose gases
• Measurement of the tune-out wavelength for ${}^{133}$Cs at $880$ nm
• Cooling arbitrary near-critical systems using hyperbolic quenches
• Universal Vortex Statistics and Stochastic Geometry of Bose-Einstein Condensation
• Many-body stabilization of a resonant p-wave Fermi gas in one dimension
• Exactly solvable model for a solitonic vortex in a compressible superfluid
• Bosonic superfluid transport in a quantum point contact
• Dimensional crossover in a strongly interacting ultracold atomic Fermi gas
• Capturing non-exponential dynamics in the presence of two decay channels
• Enhanced visibility of the Fulde-Ferrell-Larkin-Ovchinnikov state in one dimensional Bose-Fermi mixtures near the immiscibility point
• Thermometry by correlated dephasing of impurities in a 1D Fermi gas
• Dynamical phase transition in the occupation fraction statistics for non-crossing Brownian particles
• Pair correlations in the normal phase of an attractive Fermi gas
• Disordered structures in ultracold spin-imbalanced Fermi gas
• Measurement of a ${}^7$Li tune-out wavelength by phase-patterned atom interferometry
• Wigner function for noninteracting fermions in hard wall potentials
• Producing an Efficient, Collimated and Thin Annular Beam with a Binary Axicon
• A 30 W, sub-kHz frequency-locked laser at 532 nm
• Evolution of an attractive polarized Fermi gas: From a Fermi liquid of polarons to a non-Fermi liquid at the Fulde-Ferrell-Larkin-Ovchinnikov quantum critical point
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• Multichannel decay law
• Quantum fluctuations on top of a $\mathcal{P}\mathcal{T}$-symmetric Bose-Einstein Condensate
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• Properties of the Superfluid in the Disordered Bose-Hubbard Model
• Mass-imbalance induced structures of binary atomic mixtures in box potentials
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• A Stable, Recursive Auxiliary Field Quantum Monte Carlo Algorithm in the Canonical Ensemble: Applications to Thermometry and the Hubbard Model
• Second sound with ultracold atoms: A brief historical account
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• A stabilization mechanism for many-body localization in two dimensions
• Effective potential and quantum criticality for imbalanced Fermi mixtures
• Single-Particle properties of a strongly-interacting Bose-Fermi mixture with mass and population imbalance
• Feasibility of a Fulde-Ferrell-Larkin-Ovchinnikov superfluid Fermi atomic gas
• Vortex precession in trapped superfluids from effective field theory
• Critical points of the three-dimensional Bose-Hubbard model from on-site atom number fluctuations
• Measurement of the dynamic polarizability of Dy atoms near the 626-nm intercombination line
• Energy absorption spectroscopy of unitary Fermi gases in a uniform potential
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• Ultracold Bose Mixtures with Spin-Dependent Fermion-Mediated Interactions
• Density profile of noninteracting fermions in a rotating $2d$ trap at finite temperature
• Spatial structure of the pair wavefunction and the density correlation functions at the BEC-BCS crossover
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• Quantum heat waves in a one-dimensional condensate
• Atomic boson-fermion mixtures in 1D box potentials: Few-body and mean-field many-body analyses
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• First Principles Prediction of the Landau Parameter for Fermi Liquids near the Unitarity Limit
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• A Multi-Purpose Platform for Analog Quantum Simulation
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• Hole probability for noninteracting fermions in a $d$-dimensional trap
• Revival of Raman Coherence of Trapped Atoms
• Density and spin modes in imbalanced normal Fermi gases from collisionless to hydrodynamic regime
• Nonequilibrium quench dynamics of Bose-Einstein condensates of microwave-shielded polar molecules
• Critical properties of weakly interacting Bose gases as modified by a harmonic confinement
• Multipolar Fermi-surface deformation in a Rydberg-dressed Fermi gas with long-range anisotropic interactions
• Multi-particle instability in a spin-imbalanced Fermi gas
• Diffusion Monte Carlo study of a spin-imbalanced two-dimensional Fermi gas with attractive interactions
• Relation connecting thermodynamics and transport of atomic unitary Fermi superfluids
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• Damping of the Anderson-Bogolyubov mode by spin and mass imbalance in Fermi mixtures
• Non-Abelian Majorana fermions in topological $s$-wave Fermi superfluids
• Dynamics of position disordered Ising spins with a soft-core potential
• Shear Viscosity of Uniform Fermi Gases with Population Imbalance
• Itinerant ferromagnetism in the repulsive Hubbard chain with anisotropic odd-wave attraction
• Semiclassical dynamics of a dark soliton in a one-dimensional bosonic superfluid in an optical lattice
• Correlated decoherence and thermometry with mobile impurities in a 1D Fermi gas
• Repulsive Fermi and Bose Polarons in Quantum Gases
• Peaks and widths of radio-frequency spectra: An analysis of the phase diagram of ultra-cold Fermi gases
• Fourth cluster and virial coefficients of a unitary Fermi gas for an arbitrary mass ratio
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• Mechanical stability of resonant Bose-Fermi mixtures
• In-medium bound-state formation and inhomogeneous condensation in Fermi gases in a hard-wall box
• Stability Analysis of a Bose-Einstein Condensate Trapped in a Generic Potential
• Exact first-order effect of interactions on the ground-state energy of harmonically-confined fermions
• Finding the stable mechanism of ring solitons in two-dimensional Fermi superfluids
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• Vortex lattice in spin-imbalanced unitary Fermi gas
• Vortices in Fermi gases with spin-dependent rotation potentials
• Impurity and soliton dynamics in a Fermi gas with nearest-neighbor interactions
• The normal state of attractive Fermi gases from coupled-cluster theory
• Strong Fulde-Ferrell Larkin-Ovchinnikov pairing fluctuations in polarized Fermi systems
• Interface potential and line tension for Bose-Einstein condensate mixtures near a hard wall
• Weighted Hartree-Fock-Bogoliubov method for interacting fermions: An application to ultracold Fermi superfluids
• Structures and proximity effects of inhomogeneous population-imbalanced Fermi gases with pairing interactions
• PhD thesis "Extreme value statistics of strongly correlated systems: fermions, random matrices and random walks"
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• Strongly Interacting Fermi Gases: Hydrodynamics and Beyond
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• Quantum simulation of the Hubbard model with ultracold fermions in optical lattices
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• $\mathcal{P}\mathcal{T}$-Symmetry Enhanced Berezinskii-Kosterlitz-Thouless Superfluidity
• Renormalization group approach to the normal phase of 2D Fermi gases