Rashba spin-orbit coupled atomic Fermi gases

Abstract

We investigate theoretically BEC-BCS crossover physics in the presence of a Rashba spin-orbit coupling in a system of two-component Fermi gas with and without a Zeeman field that breaks the population balance between the two components. A new bound state (Rashba pair) emerges because of the spin-orbit interaction. We study the properties of Rashba pairs using a standard pair fluctuation theory. At zero temperature, the Rashba pairs condense into a macroscopic mixed spin state. We discuss in detail the experimental signatures for observing the condensation of Rashba pairs by calculating various physical observables which characterize the properties of the system and can be measured in experiment.

10 pages, 7 figures

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Cited by in corpus (70)

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• Unconventional states of bosons with synthetic spin-orbit coupling
• Searching for Majorana Fermions in 2D Spin-orbit Coupled Fermi Superfluids at Finite Temperature
• Topological superfluid in one-dimensional spin-orbit coupled atomic Fermi gases
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• Tuning the Tricritical Point with Spin-orbit Coupling in Polarized Fermionic Condensates
• Josephson physics of spin-orbit coupled elongated Bose-Einstein condensates
• Finite-Momentum Dimer Bound State in Spin-Orbit Coupled Fermi Gas
• Radio-frequency spectroscopy of a strongly interacting spin-orbit coupled Fermi gas
• Fulde-Ferrell Pairing instability in Spin-Orbit Coupled Fermi Gas
• Dynamical topological phases in quenched spin-orbit coupled degenerate Fermi gas
• Modified Bethe-Peierls boundary condition for ultracold atoms with Spin-Orbit coupling
• Quantum metric contribution to the pair mass in spin-orbit coupled Fermi superfluids
• Scattering and effective interactions of ultracold atoms with spin-orbit coupling
• Superfluidity, Sound Velocity and Quasi Condensation in the 2D BCS-BEC Crossover
• BCS-BEC crossover in three-dimensional Fermi gases with spherical spin-orbit coupling
• Topological superfluid phases of an atomic Fermi gas with in- and out-of-plane Zeeman fields and equal Rashba-Dresselhaus spin-orbit coupling
• Superfluidity and collective modes in Rashba spin-orbit coupled Fermi gases
• Tuning Rashba and Dresselhaus spin-orbit couplings: Effects on singlet and triplet condensation with Fermi atoms
• Short range asymptotic behavior of the wave-functions of interacting spin-half fermionic atoms with spin-orbit coupling: a model study
• Harmonically trapped two-atom systems: Interplay of short-range s-wave interaction and spin-orbit coupling
• Rashba-type Spin-orbit Coupling in Bilayer Bose-Einstein Condensates
• Superconducting monolayer deposited on substrate: effects of the spin-orbit coupling induced by proximity effects
• BCS-BEC crossover at finite temperature in spin-orbit coupled Fermi gases
• Fulde-Ferrell superfluidity in ultracold Fermi gases with Rashba spin-orbit coupling
• Photovoltaic Effect of Atomtronics Induced by Artificial Gauge Field
• Hetero pairing and component-dependent pseudogap phenomena in an ultracold Fermi gas with mass imbalance
• Vortex line in spin-orbit coupled atomic Fermi gases
• Radio-frequency spectroscopy of weakly bound molecules in spin-orbit coupled atomic Fermi gases
• Position-dependent spin-orbit coupling for ultracold atoms
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• Topological states in normal and superconducting $p$-wave chains
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• Renormalization group approach to a $p$-wave superconducting model
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• Edge currents as a probe of the strongly spin-polarized topological noncentrosymmetric superconductors
• Mechanism for enhancement of superconductivity in multi-band systems with odd parity hybridization
• Fulde-Ferrell-Larkin-Ovchinnikov state to topological superfluidity transition in bilayer spin-orbit coupled degenerate Fermi gas
• Polarization of a quasi two-dimensional repulsive Fermi gas with Rashba spin-orbit coupling: a variational study
• Vortex-lattice formation in a spin-orbit coupled rotating spin-1 condensate
• Thermodynamic Properties of Rashba Spin-Orbit-Coupled Fermi Gas
• Trapped Fermi gases with Rashba spin-orbit coupling in two dimensions
• Validity of single-channel model for a spin-orbit coupled atomic Fermi gas near Feshbach resonances
• Pair condensation in the BCS-BEC crossover of ultracold atoms loaded onto a 2D square lattice
• Spin-orbit-coupled atomic Fermi gases in two-dimensional optical lattices in the presence of a Zeeman field
• Proposed method to realize the $p$-wave superfluid state using a $s$-wave superfluid Fermi gas with a synthetic spin-orbit interaction
• Induced interactions in the BCS-BEC crossover of two-dimensional Fermi gases with Rashba spin-orbit coupling
• Thermal transitions, pseudogap behavior and BCS-BEC crossover in Fermi-Fermi mixtures
• Accurate projective two-band description of topological superfluidity in spin-orbit-coupled Fermi gases
• Fulde-Ferrell pairing instability of a Rashba spin-orbit coupled Fermi gas
• Majorana-Weyl cones in ferroelectric superconductors
• Rotating a Rashba-coupled Fermi gas in two dimensions
• Two-dimensional quasi-ideal Fermi gas with Rashba spin-orbit coupling
• Counterflow of spontaneous mass currents in trapped spin-orbit coupled Fermi gases
• Coexistence of topological and nontopological Fermi-superfluid phases
• Spin-orbit-induced bound state and molecular signature of the degenerate Fermi gas in a narrow Feshbach resonance
• Topological effects on transition temperatures and response functions in three-dimensional Fermi superfluids
• Rashbon bound states associated with a spherical spin-orbit coupling in an ultracold Fermi gas with an $s$-wave interaction
• Triplet pair amplitude in a trapped $s$-wave superfluid Fermi gas with broken spin rotation symmetry
• Unconventional superfluidity in quasi-one-dimensional systems
• Critical temperature in the BCS-BEC crossover with spin-orbit coupling
• From Narrow to Broad Feshbach Resonances: Condensate Fraction of Cooper Pairs and Preformed Molecules
• Triplet pair amplitude in a trapped $s$-wave superfluid Fermi gas with broken spin rotation symmetry. II. Three dimensional continuum case
• Rabi coupled fermions in the BCS-BEC crossover
• Dynamical spin properties of confined Fermi and Bose systems in presence of spin-orbit coupling
• Anomalous isothermal compressibility in spin-orbit coupled degenerate Fermi gases