Topological Fulde-Ferrell superfluid in spin-orbit coupled atomic Fermi gases

Abstract

We theoretically predict a new topological matter - topological inhomogeneous Fulde-Ferrell superfluid - in one-dimensional atomic Fermi gases with equal Rashba and Dresselhaus spin-orbit coupling near s-wave Feshbach resonances. The realization of such a spin-orbit coupled Fermi system has already been demonstrated recently by using a two-photon Raman process and the extra one-dimensional confinement is easy to achieve using a tight two-dimensional optical lattice. The topological Fulde-Ferrell superfluid phase is characterized by a nonzero center-of-mass momentum and a non-trivial Berry phase. By tuning the Rabi frequency and the detuning of Raman laser beams, we show that such an exotic topological phase occupies a significant part of parameter space and therefore it could be easily observed experimentally, by using, for example, momentum-resolved and spatially resolved radio-frequency spectroscopy.

5 pages, 4 figures

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Cited by in corpus (45)

• Degenerate Quantum Gases with Spin-Orbit Coupling
• Structured Weyl Points in Spin-Orbit Coupled Fermionic Superfluids
• Anisotropic Weyl Fermions from Quasiparticle Excitation Spectrum of a 3D Fulde-Ferrell Superfluid
• Gapless topological Fulde-Ferrell superfluidity in spin-orbit coupled Fermi gases
• Dynamical topological phases in quenched spin-orbit coupled degenerate Fermi gas
• Berezinskii-Kosterlitz-Thouless Phase Transition in 2D Spin-Orbit Coupled Fulde-Ferrell Superfluids
• Quantum depletion and superfluid density of a supersolid in Raman spin-orbit coupled Bose gases
• Pairing Superfluidity in Spin-Orbit Coupled Ultracold Fermi Gases
• 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
• Gapless topological Fulde-Ferrell superfluidity induced by in-plane Zeeman field
• Rashba-type Spin-orbit Coupling in Bilayer Bose-Einstein Condensates
• Generating Giant Vortex in a Fermi Superfluid via Spin-Orbital-Angular-Momentum Coupling
• Fulde-Ferrell Superfluids without Spin Imbalance in Driven Optical Lattices
• Flux-Stabilized Majorana Zero Modes in Coupled One-Dimensional Fermi Wires
• Floquet FFLO superfluids and Majorana fermions in a shaken fermionic optical lattice
• Quantum and thermal fluctuations in a Raman spin-orbit coupled Bose gas
• Spin-orbital-angular-momentum-coupled quantum gases
• Superfluid density and Berezinskii-Kosterlitz-Thouless transition of a spin-orbit coupled Fulde-Ferrell superfluid
• Large Chern Number Topological Superfluids in Coupled Layer System
• Spin-exchange-induced exotic superfluids in a Bose-Fermi spinor mixture
• Three-dimensional spin-orbit coupled Fermi gases: Fulde-Ferrell pairing, Majorana fermions, Weyl fermions and gapless topological superfluidity
• Topological Fulde-Ferrell states in alkaline-earth-metal-like atoms near an orbital Feshbach resonance
• 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
• Inhomogeneous superconductivity in the presence of time-reversal symmetry
• Simulating artificial one-dimensional physics with ultra-cold fermionic atoms: three exemplary themes
• Superfluidity of a Raman spin-orbit-coupled Bose gas at finite temperature
• 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
• Phase diagram, band structure and density of states in two-dimensional attractive Fermi-Hubbard model with Rashba spin-orbit coupling
• Fulde-Ferrell pairing instability of a Rashba spin-orbit coupled Fermi gas
• Orbital hybridized topological Fulde-Ferrel superfluidity in a noncentrosymmetric optical lattice
• Weyl spin-orbit-coupling-induced interactions in uniform and trapped atomic quantum fluids
• Resonantly interacting $p$-wave Fermi superfluid in two dimensions: Tan's contact and breathing mode
• Symmetry-enriched Bose-Einstein condensates in spin-orbit coupled bilayer system
• Unconventional pairings of spin-orbit coupled attractive degenerate Fermi gas in a one dimensional optical lattice
• Larkin-Ovchinikov superfluidity in time-reversal symmetric bilayer Fermi gases
• Phase tunable Josephson junction and spontaneous mass current in a spin-orbit coupled Fermi superfluid
• Spin-orbit coupled repulsive Fermi atoms in a one-dimensional optical lattice
• Energetics and structural properties of two- and three-boson systems in the presence of 1D spin-orbit coupling
• Topological Fulde-Ferrell Superfluids in Triangular Lattices
• Exotic superfluid of trapped Fermi gases with spin-orbit coupling in dimensional crossover