Topological Fulde-Ferrel-Larkin-Ovchinnikov states in Spin-orbit Coupled Fermi Gases

Abstract

Pairing in an attractively interacting two-component Fermi gas in the absence of the inversion symmetry and/or the time-reversal symmetry may give rise to exotic superfluid states. Notable examples range from the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state with a finite center-of-mass momentum in a polarized Fermi gas, to the topological superfluid state in a two-dimensional Fermi gas under Rashba spin-orbit coupling and an out-of-plane Zeeman field. Here, we show that a topological FFLO state can be stabilized in a two-dimensional Fermi gas with Rashba spin-orbit coupling and both in-plane and out-of-plane Zeeman fields. We characterize the topological FFLO state by a non-trivial Berry phase, and demonstrate the stability region of the state on the zero-temperature phase diagram. Given its unique properties in both the quasi-particle dispersion spectra and the momentum distribution, signatures of the topological FFLO state can be detected using existing experimental techniques.

5 pages, 5 figures

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• Topological Superfluids with Finite Momentum Pairing and Majorana Fermions
• Unconventional superfluid in a two-dimensional Fermi gas with anisotropic spin-orbit coupling and Zeeman fields
• Molecule and polaron in a highly polarized two-dimensional Fermi gas with spin-orbit coupling
• Unconventional Fulde-Ferrell-Larkin-Ovchinnikov pairing states in a Fermi gas with spin-orbit coupling
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Cited by in corpus (99)

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• Topological Superfluids with Finite Momentum Pairing and Majorana Fermions
• High Controllable and Robust 2D Spin-Orbit Coupling for Quantum Gases
• Spin - orbital-angular-momentum coupling in Bose-Einstein condensates
• Interacting spin-orbit-coupled spin-1 Bose-Einstein condensates
• Supersolid with nontrivial topological spin textures in spin-orbit-coupled Bose gases
• Anisotropic Weyl Fermions from Quasiparticle Excitation Spectrum of a 3D Fulde-Ferrell Superfluid
• Motion of solitons in one-dimensional spin-orbit-coupled Bose-Einstein condensates
• Pair-Density-Wave Superconducting States and Electronic Liquid Crystal Phases
• Inhomogeneous Topological Superfluidity in One-Dimensional Spin-Orbit-Coupled Fermi Gases
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• Gapless topological Fulde-Ferrell superfluidity in spin-orbit coupled Fermi gases
• Spin-tensor--momentum-coupled Bose-Einstein condensates
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• Berezinskii-Kosterlitz-Thouless Phase Transition in 2D Spin-Orbit Coupled Fulde-Ferrell Superfluids
• Pairing Superfluidity in Spin-Orbit Coupled Ultracold Fermi Gases
• Multiple signatures of topological transitions for interacting fermions in chain lattices
• General framework for transport in spin-orbit-coupled superconducting heterostructures: Nonuniform spin-orbit coupling and spin-orbit-active interfaces
• Topological Fulde-Ferrell Superfluids of a Spin-Orbit Coupled Fermi Gas
• The evolution of magnetic structure driven by a synthetic spin-orbit coupling in two-component Bose-Hubbard model
• Three-component Ultracold Fermi Gases with Spin-Orbit Coupling
• Ferromagnetism in a two-component Bose-Hubbard model with a synthetic spin-orbit coupling
• Simulating Chiral Magnetic and Separation Effects with Spin-Orbit Coupled Atomic Gases
• Supercurrent-induced topological phase transitions
• Gapless topological Fulde-Ferrell superfluidity induced by in-plane Zeeman field
• Exotic Vortex States with Discrete Rotational Symmetry in Atomic Fermi Gases with Spin-Orbital-Angular-Momentum Coupling
• Generating Giant Vortex in a Fermi Superfluid via Spin-Orbital-Angular-Momentum Coupling
• Flux-Stabilized Majorana Zero Modes in Coupled One-Dimensional Fermi Wires
• Fulde-Ferrell Superfluids without Spin Imbalance in Driven Optical Lattices
• Topological superradiant state in Fermi gases with cavity induced spin-orbit coupling
• Chiral Topological Orders in an Optical Raman Lattice
• The Pairing of Spin-orbit Coupled Fermi Gas in Optical Lattice
• Critical magnetic field of ultrathin superconducting films and interfaces
• Floquet FFLO superfluids and Majorana fermions in a shaken fermionic optical lattice
• Momentum-Space Spin Texture in a Topological Superconductor
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• Topological Fulde-Ferrell states in alkaline-earth-metal-like atoms near an orbital Feshbach resonance
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• Time Translation Symmetry Breaking in an Isolated Spin-Orbit-Coupled Fluid of Light
• Spin-orbit-coupled topological Fulde-Ferrell states of fermions in a harmonic trap
• Majorana fermions in quasi-1D and higher dimensional ultracold fermionic optical lattices
• Fulde-Ferrell States in Inverse Proximity Coupled Magnetically-Doped Topological Heterostructures
• Fulde-Ferrell-Larkin-Ovchinnikov state to topological superfluidity transition in bilayer spin-orbit coupled degenerate Fermi gas
• Inhomogeneous superconductivity in the presence of time-reversal symmetry
• Topological quantum phase transitions and edge states in spin-orbital coupled Fermi gases
• Spontaneous magnetization in unitary superconductors with time reversal symmetry breaking
• Thermodynamic Properties of Rashba Spin-Orbit-Coupled Fermi Gas
• Signature of Orbital Driven Finite Momentum Pairing in a 3D Ising Superconductor
• Topological Superconductivity in Monolayer T${}_{\text{d}}$-MoTe${}_2$
• Larkin-Ovchinnikov state of superconducting Weyl metals: Fundamental differences between pairings restricted and extended in the $\text{k}$-space
• Angular topological superfluid and topological vortex in an ultracold Fermi gas
• Effective Hamiltonians for quasi-one-dimensional Fermi gases with spin-orbit coupling
• Equivalence of Rashba-Hubbard and Hubbard chains
• Multiorder topological superfluid phase transitions in a two-dimensional optical superlattice
• Unpaired topological triply degenerate point for spin-tensor-momentum-coupled ultracold atoms
• Superconductivity in a Magnetic Rashba Semimetal EuAuBi
• Fabry-Perot superconducting diode
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• Orbital hybridized topological Fulde-Ferrel superfluidity in a noncentrosymmetric optical lattice
• Superfluid weight and Berezinskii-Kosterlitz-Thouless temperature of spin-imbalanced and spin-orbit-coupled Fulde-Ferrell phases in lattice systems
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• Weyl spin-orbit-coupling-induced interactions in uniform and trapped atomic quantum fluids
• Rotating a Rashba-coupled Fermi gas in two dimensions
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• Phase tunable Josephson junction and spontaneous mass current in a spin-orbit coupled Fermi superfluid
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