Fermi-Liquid Behavior of the Normal Phase of a Strongly Interacting Gas of Cold Atoms

Abstract

We measure the magnetic susceptibility of a Fermi gas with tunable interactions in the low-temperature limit and compare it to quantum Monte Carlo calculations. Experiment and theory are in excellent agreement and fully compatible with the Landau theory of Fermi liquids. We show that these measure- ments shed new light on the nature of the excitations of the normal phase of a strongly interacting Fermi gas.

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Cited by in corpus (72)

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• Transverse Demagnetization Dynamics of a Unitary Fermi Gas
• Exploring the ferromagnetic behaviour of a repulsive Fermi gas via spin dynamics
• Breakdown of Fermi liquid description for strongly interacting fermions
• Spectral response and contact of the unitary Fermi gas
• Imbalanced Fermi Gases at Unitarity
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• Universal Sound Diffusion in a Strongly Interacting Fermi Gas
• Onset of a Pseudogap Regime in Ultracold Fermi Gases
• Mapping out spin and particle conductances in a quantum point contact
• Mediated interactions between Fermi polarons and the role of impurity quantum statistics
• Angle-resolved photoemission spectroscopy of a Fermi-Hubbard system
• Quantum Joule-Thomson Effect in a Saturated Homogeneous Bose Gas
• Cooper pairing above the critical temperature in a unitary Fermi gas
• Pseudogaps in strongly interacting Fermi gases
• Observation of the Leggett-Rice effect in a unitary Fermi gas
• High temperature pairing in a strongly interacting two-dimensional Fermi gas
• Phase structure of mass- and spin-imbalanced unitary Fermi gases
• Pairing effects in the normal phase of a two-dimensional Fermi gas
• Fermi gas throughout the BCS-BEC crossover: Comparative study of t-matrix approaches with various degrees of self-consistency
• A two-dimensional Fermi liquid with attractive interactions
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• Finite-temperature equation of state of polarized fermions at unitarity
• Uniform spin susceptibility and spin-gap phenomenon in the BCS-BEC crossover regime of an ultracold Fermi gas
• Pseudogap phenomena in ultracold atomic Fermi gases
• Universal phase diagram and scaling functions of imbalanced Fermi gases
• Inhomogeneous phases in one-dimensional mass- and spin-imbalanced Fermi gases
• Pairing correlations across the superfluid phase transition in the unitary Fermi gas
• Probing strongly interacting atomic gases with energetic atoms
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• Imaginary polarization as a way to surmount the sign problem in ab initio calculations of spin-imbalanced Fermi gases
• The pseudogap regime in the unitary Fermi gas
• Mesoscopic spin transport between strongly interacting Fermi gases
• Pairing and the spin susceptibility of the polarized unitary Fermi gas in the normal phase
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• Highly Polarized Fermi Gases across a Narrow Feshbach Resonance
• Pauli paramagnetism of an ideal Fermi gas
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• Pair condensation in a Finite Trapped Fermi Gas
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• A complete theory for the magnetism of an ideal gas of electrons
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• Shear viscosity and Strong-Coupling Corrections in the BCS-BEC crossover Regime of an Ultracold Fermi Gas
• Quasiparticle Dispersions and Lifetimes in the Normal State of the BCS-BEC Crossover
• Condensation Energy of a Spin-1/2 Strongly Interacting Fermi Gas
• Spin susceptibility and effects of a harmonic trap in the BCS-BEC crossover regime of an ultracold Fermi gas
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• Triplet pair amplitude in a trapped $s$-wave superfluid Fermi gas with broken spin rotation symmetry
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• Pseudogap regime of a two-dimensional uniform Fermi gas
• Leading Order $k_{F}a$ Corrections to the Free Energy and Phase Separation in Two-component Fermion Systems
• Superfluid-Normal Quantum Phase Transitions in an Imbalanced Fermi Gas
• The Gor'kov and Melik-Barkhudarov correction to the mean-field critical field transition to Fulde-Ferrell-Larkin-Ovchinnikov states
• A lattice pairing-field approach to ultracold Fermi gases
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