Beyond-mean-field description of a trapped unitary Fermi gas with mass and population imbalance

Abstract

A detailed description is given of the phase diagram for a two-component unitary Fermi gas with mass and population imbalance, for both homogeneous and trapped systems. This aims at providing quantitative benchmarks for the normal-to-superfluid phase transition of a mass-imbalanced Fermi gas in the temperature-polarization parameter space. A self-consistent t-matrix approach is adopted, which has already proven to accurately describe the thermodynamic properties of the mass and population balanced unitary Fermi gas. Our results provide a guideline for the ongoing experiments on heteronuclear Fermi mixtures.

10 pages, 10 figures, final version

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Cited by in corpus (17)

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• Quantum mixtures of ultracold gases of neutral atoms
• Exploring ultracold collisions in ${}^6$Li-${}^{53}$Cr Fermi mixtures: Feshbach resonances and scattering properties of a novel alkali-transition metal system
• Pairing and the spin susceptibility of the polarized unitary Fermi gas in the normal phase
• Ultracold LiCr: a new pathway to quantum gases of paramagnetic polar molecules
• Double-degenerate Fermi mixtures of ${}^6$Li and ${}^{53}$Cr atoms
• Observation of low-field Feshbach resonances between ${}^{161}$Dy and ${}^{40}$K
• Optically trapped Feshbach molecules of fermionic 161Dy and 40K
• 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
• Measurement of the dynamic polarizability of Dy atoms near the 626-nm intercombination line
• Stability of the Fulde-Ferrell-Larkin-Ovchinnikov states in anisotropic systems and critical behavior at thermal $m$-axial Lifshitz points
• Spectral functions of the strongly interacting 3D Fermi gas
• BCS-BEC crossover of the strongly interacting ${}^6$Li-${}^{40}$K mixture
• Dipole-Mode Spectrum and Hydrodynamic Crossover in a Resonantly Interacting Two-Species Fermion Mixture
• Broad Feshbach resonance with a large background scattering length in a fermionic atom-molecule mixture
• Optically trapped Feshbach molecules of fermionic ${}^{161}$Dy and ${}^{40}$K: Role of light-induced and collisional losses
• Low-field Feshbach resonances and three-body losses in a fermionic quantum gas of ${}^{161}$Dy