Trapped Fermions across a Feshbach resonance with population imbalance

Abstract

We investigate the phase separation of resonantly interacting fermions in a trap with imbalanced spin populations, both at zero and at finite temperatures. We directly minimize the thermodynamical potential under the local density approximation instead of using the gap equation, as the latter may give unstable solutions. On the BEC side of the resonance, one may cross three different phases from the trap center to the edge; while on the BCS side or at resonance, typically only two phases show up. We compare our results with the recent experiment, and the agreement is remarkable.

4 pages, 3 figures, replaced with the published version

References in corpus (3)

• Vortices and Superfluidity in a Strongly Interacting Fermi Gas
• Observation of the Pairing Gap in a Strongly Interacting Fermi Gas
• Popov approximation for composite bosons in the BCS-BEC crossover

Cited by in corpus (76)

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• Direct Observation of the Superfluid Phase Transition in Ultracold Fermi Gases
• Fermion Interactions and Universal Behavior in Strongly Interacting Theories
• Deformation of a Trapped Fermi Gas with Unequal Spin Populations
• Normal state of a polarized Fermi gas at unitarity
• Imbalanced Feshbach-resonant Fermi gases
• BEC-BCS crossover, phase transitions and phase separation in polarized resonantly-paired superfluids
• Finite temperature phase diagram of a polarised Fermi condensate
• Mean field phase diagrams of imbalanced Fermi gases near a Feshbach resonance
• Two-species fermion mixtures with population imbalance
• Fluctuations and phase transitions in Larkin-Ovchinnikov liquid crystal states of population-imbalanced resonant Fermi gas
• Generic Phase Diagram of Fermion Superfluids with Population Imbalance
• Fulde-Ferrell-Larkin-Ovchinnikov states in one-dimensional spin-polarized ultracold atomic Fermi gases
• Profiles of near-resonant population-imbalanced trapped Fermi gases
• Sarma Phase in Trapped Unbalanced Fermi Gases
• Imbalanced Fermi Gases at Unitarity
• Surface Tension in Unitary Fermi Gases with Population Imbalance
• Zero Temperature Thermodynamics of Asymmetric Fermi Gases at Unitarity
• Pairing of a trapped resonantly-interacting fermion mixture with unequal spin populations
• Effects of density imbalance on the BCS-BEC crossover in semiconductor electron-hole bilayers
• Intermediate temperature superfluidity in an atomic Fermi gas with population imbalance
• Phase separation in a polarized Fermi gas with spin-orbit coupling
• Finite temperature phase diagram of a spin-polarized ultracold Fermi gas in a highly elongated harmonic trap
• Resonant pairing between Fermions with unequal masses
• Level crossing in the three-body problem for strongly interacting fermions in a harmonic trap
• Mean field thermodynamics of a spin-polarized spherically trapped Fermi gas at unitarity
• Mixtures of ultracold fermions with unequal masses
• Superfluid shells for trapped fermions with mass and population imbalance
• Phase Diagram of Cold Polarized Fermi Gas in Two Dimensions
• Thermodynamics and superfluid density in BCS-BEC crossover with and without population imbalance
• Finite Temperature Phase Diagram of a Two-Component Fermi Gas with Density Imbalance
• Fermi-Fermi Mixtures in the Strong Attraction Limit
• Stability conditions and phase diagrams for two component Fermi gases with population imbalance
• Breakdown of the local density approximation in interacting systems of cold fermions in strongly anisotropic traps
• Phase diagram of a polarized Fermi gas across a Feshbach resonance in a potential trap
• Imbalanced Superfluid Phase of a Trapped Fermi Gas in the BCS-BEC Crossover Regime
• Evaluating the phase diagram of superconductors with asymmetric spin populations
• Angular Fulde-Ferrell-Larkin-Ovchinnikov state in cold fermion gases in a toroidal trap
• Theory of Superfluids with Population Imbalance: Finite Temperature and BCS-BEC Crossover Effects
• Visualization of vortex bound states in polarized Fermi gases at unitarity
• Detecting the breached pair phase in a polarized ultracold Fermi gas
• Quantum liquid-crystal order in resonant atomic gases
• Asymmetric Fermi superfluid with different atomic species in a harmonic trap
• Non-BCS superfluidity in trapped ultracold Fermi gases
• Concomitant Modulated Superfluidity In Polarized Fermionic Gases
• Finite temperature effects in trapped Fermi gases with population imbalance
• Asymmetric Fermi superfluid in a harmonic trap
• Finite temperature phase diagram of trapped Fermi gases with population imbalance
• Theory of the Normal/Superfluid interface in population imbalanced Fermi gases
• BCS-BEC crossover and quantum phase transition for 6Li and 40K atoms across Feshbach resonance
• Quantum phases of Fermi-Fermi mixtures in optical lattices
• Finite-Temperature Behavior of an Inter-species Fermionic Superfluid with Population Imbalance
• FFLO Vortex Lattice States in Cold Fermionic-Atom Systems
• Momentum-resolved radio-frequency spectroscopy of a spin-orbit coupled atomic Fermi gas near a Feshbach resonance in harmonic traps
• Dynamics of the corotating vortices in dipolar Bose-Einstein condensates in the presence of dissipation
• Anomalous specific heat jump in a two-component ultracold Fermi gas
• Topological phase transition in the quench dynamics of a one-dimensional Fermi gas
• Dimensional Crossover in a Spin-imbalanced Fermi gas
• Formation of magnetic impurities and pair-breaking effect in a superfluid Fermi gas
• Trap-imbalanced fermion mixtures
• Temperature Effects in a Fermi Gas with Population Imbalance
• Reentrant Superfluidity and Pair Density Wave in Single Component Dipolar Fermi Gases
• Spin polarizability of a trapped superfluid Fermi gas
• Unconventional interaction between vortices in a polarized Fermi gas
• Unusual destruction and enhancement of superfluidity of atomic Fermi gases by population imbalance in a one-dimensional optical lattice
• A Mean Field Analysis of Pairing in Asymmetric Fermi Systems at Finite Temperature
• Collective modes in asymmetric ultracold Fermi systems
• Ground states of atomic Fermi gases in a two-dimensional optical lattice with and without population imbalance
• Superfluid/ferromagnet/superfluid junction and $\pi$-phase in a superfluid Fermi gas
• Anomalous pseudogap in population imbalanced Fermi superfluids
• Enhanced Fulde-Ferrell-Larkin-Ovchinnikov and Sarma superfluid states near an orbital Feshbach resonance
• Pair condensation of polarized fermions in the BCS-BEC crossover
• Quench dynamics of a Bose-Einstein condensate under synthetic spin-orbit coupling
• Trap and population imbalanced two-component Fermi gas in the BEC limit
• Phase diagram for the trapped p-wave fermionic superfluid with population imbalance