Single-plane-wave Larkin-Ovchinnikov-Fulde-Ferrell state in BCS--Bose-Einstein condensation crossover

Abstract

We study the single-plane-wave Larkin-Ovchinnikov-Fulde-Ferrell (LOFF) states for BCS--Bose-Einstein condensation (BEC) crossover at general temperatures $T$. Because we include the important effects of noncondensed pairs, our $T\ne 0$ phase diagrams are different from those reported in earlier work. We find that generalized LOFF phases may be the ground state for a wide range of (weak through moderately strong) interactions, including the unitary regime. However, these LOFF phases are readily destroyed by non-zero $T$.

4 pages, 3 figures, some discussions are revised

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• Superfluid phase diagrams of trapped Fermi gases with population imbalance
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• Cold Attractive Spin Polarized Fermi Lattice Gases and the Doped Positive U Hubbard Model
• Enhancement effect of mass imbalance on Fulde-Ferrell-Larkin-Ovchinnikov type of pairing in Fermi-Fermi mixtures of ultracold quantum gases
• Imbalanced Superfluid Phase of a Trapped Fermi Gas in the BCS-BEC Crossover Regime
• Finite temperature QMC study of the one-dimensional polarized Fermi gas
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• Quantum liquid-crystal order in resonant atomic gases
• Instability of Fulde-Ferrell-Larkin-Ovchinnikov states in three and two dimensions
• Finite temperature phase diagram of trapped Fermi gases with population imbalance
• Polarized Fermi gases at finite temperature in the BCS-BEC crossover
• Finite-Temperature Behavior of an Inter-species Fermionic Superfluid with Population Imbalance
• Radio Frequency Spectroscopy of Trapped Fermi Gases with Population Imbalance
• Phase diagrams of Fermi gases in a trap with mass and population imbalances at finite temperature
• Dimensional Crossover in a Spin-imbalanced Fermi gas
• Superfluidity of a spin-imbalanced Fermi gas in a three-dimensional optical lattice
• Collective mode contributions to the Meissner effect: Fulde-Ferrell and pair-density wave superfluids
• Thermodynamic Properties of Rashba Spin-Orbit-Coupled Fermi Gas
• Application of renormalized RPA to polarized Fermi gases
• Asymmetric Fermion Superfluid with Inter- and Intra-Species Pairings
• BCS-BEC Crossover in Mix-dimensional Fermi Gases
• Superfluidity and pairing phenomena in ultracold atomic Fermi gases in one-dimensional optical lattices, Part II: Effects of population imbalance
• Superfluidity in atomic Fermi gases
• The Gor'kov and Melik-Barkhudarov correction to the mean-field critical field transition to Fulde-Ferrell-Larkin-Ovchinnikov states
• Probing the homogeneous spectral function of a strongly interacting superfluid atomic Fermi gas in a trap using phase separation and momentum resolved rf spectroscopy