Induced interactions in the BCS-BEC crossover of two-dimensional Fermi gases with Rashba spin-orbit coupling
arXiv:1701.02706 · doi:10.1103/PhysRevA.95.033609
Abstract
We investigate the Gorkov--Melik-Barkhudarov (GM) correction to superfluid transition temperature in two-dimensional Fermi gases with Rashba spin-orbit coupling (SOC) across the SOC-driven BCS-BEC crossover. In the calculation of the induced interaction, we find that the spin-component mixing due to SOC can induce both of the conventional screening and additional antiscreening contributions that interplay significantly in the strong SOC regime. While the GM correction generally lowers the estimate of transition temperature, it turns out that at a fixed weak interaction, the correction effect exhibits a crossover behavior where the ratio between the estimates without and with the correction first decreases with SOC and then becomes insensitive to SOC when it goes into the strong SOC regime. We demonstrate the applicability of the GM correction by comparing the zero-temperature condensate fraction with the recent quantum Monte Carlo results.
References in corpus (75)
- Topological Insulators
- Topological insulators and superconductors
- Non-Abelian Anyons and Topological Quantum Computation
- Anomalous Hall effect
- A spin-orbit coupled Bose-Einstein condensate
- Artificial gauge potentials for neutral atoms
- Vortices and Superfluidity in a Strongly Interacting Fermi Gas
- Spin-orbit coupling in quantum gases
- Spin-Orbit Coupled Degenerate Fermi Gases
- Spin-Injection Spectroscopy of a Spin-Orbit Coupled Fermi Gas
- Observation of the Pairing Gap in a Strongly Interacting Fermi Gas
- Experimental Study of the BEC-BCS Crossover Region in Lithium 6
- Realization of Two-Dimensional Spin-orbit Coupling for Bose-Einstein Condensates
- Crossover from a molecular Bose-Einstein condensate to a degenerate Fermi gas
- Degenerate Quantum Gases with Spin-Orbit Coupling
- Non-Abelian gauge potentials for ultra-cold atoms with degenerate dark states
- Experimental realization of a two-dimensional synthetic spin-orbit coupling in ultracold Fermi gases
- Molecular Probe of Pairing in the BEC-BCS Crossover
- Thermodynamics of the BCS-BEC crossover
- Influence of Induced Interactions on the Superfluid Transition in Dilute Fermi Gases
- BCS-BEC Crossover and Topological Phase Transition in 3D Spin-Orbit Coupled Degenerate Fermi Gases
- Realistic Rashba and Dressehaus spin-orbit coupling for neutral atoms
- Realization of 2D Spin-orbit Interaction and Exotic Topological Orders in Cold Atoms
- Probing anisotropic superfluidity of rashbons in atomic Fermi gases
- Pairing Fluctuation Theory of Superconducting Properties in Underdoped to Overdoped Cuprates
- Spin-Orbit Coupled Fermi Gases across a Feshbach Resonance
- Magnetically generated spin-orbit coupling for ultracold atoms
- Superfluid pairing in a polarized dipolar Fermi gas
- A Raman-induced Feshbach resonance in an effectively single-component Fermi gas
- Generalized Rashba spin-orbit coupling for cold atoms
- BCS-BEC crossover induced by a synthetic non-Abelian gauge field
- Experimental observation of a topological band gap opening in ultracold Fermi gases with two-dimensional spin-orbit coupling
- How does a synthetic non-Abelian gauge field influence the bound states of two spin-$\half$ fermions?
- Superfluid transition in quasi2D Fermi gases
- Atomic spin-orbit coupling synthesized with magnetic-field-gradient pulses
- BCS-BEC Crossover in 2D Fermi Gases with Rashba Spin-Orbit Coupling
- Stability of spin-orbit coupled Fermi gases with population imbalance
- Searching for Majorana Fermions in 2D Spin-orbit Coupled Fermi Superfluids at Finite Temperature
- Evolution from BCS to BEC superfluidity in the presence of spin-orbit coupling
- Universal equation of state and pseudogap in the two-dimensional Fermi gas
- Topological p_x+ip_y Superfluid Phase of Fermionic Polar Molecules
- Topological superfluid in a trapped two-dimensional polarized Fermi gas with spin-orbit coupling
- Rashba spin-orbit coupled atomic Fermi gases
- Particle-hole fluctuations in the BCS-BEC Crossover
- Phase separation in a polarized Fermi gas with spin-orbit coupling
- Opposite effect of spin-orbit coupling on condensation and superfluidity
- Fermi Gases with Synthetic Spin-Orbit Coupling
- Population and mass imbalance in atomic Fermi gases
- BCS-BEC crossover in spin-orbit coupled two-dimensional Fermi gases
- Who is the Lord of the Rings: Majorana, Dirac or Lifshitz? The Spin-Orbit-Zeeman Saga in Ultra-cold Fermions
- Condensate fraction of a resonant Fermi gas with spin-orbit coupling in three and two dimensions
- Lifshitz Point in the Phase Diagram of Resonantly Interacting - Mixtures
- Superfluid pairing between fermions with unequal masses
- Effects of spin-orbit coupling on the Berezinskii-Kosterlitz-Thouless transition and the vortex-antivortex structure in two-dimensional Fermi gases
- The induced interaction in a Fermi gas with a BEC-BCS crossover
- Pairing Superfluidity in Spin-Orbit Coupled Ultracold Fermi Gases
- Rashbons: Properties and their significance
- Quantum phases of atomic Fermi gases with anisotropic spin-orbit coupling
- BCS-BEC crossover in three-dimensional Fermi gases with spherical spin-orbit coupling
- Novel -wave superfluids of fermionic polar molecules
- Tuning Rashba and Dresselhaus spin-orbit couplings: Effects on singlet and triplet condensation with Fermi atoms
- Rashba realization: Raman with RF
- Induced interactions and the superfluid transition temperature in a three-component Fermi gas
- Induced interactions for ultracold Fermi gases in optical lattices
- Rashba spin-orbit coupling, strong interactions, and the BCS-BEC crossover in the ground state of the two-dimensional Fermi Gas
- BCS-BEC crossover at finite temperature in spin-orbit coupled Fermi gases
- Finite Temperature Phase Diagram of Quasi-Two-Dimensional Imbalanced Fermi Gases Beyond Mean-Field
- Quantum phase transitions and Berezinskii-Kosterlitz-Thouless temperature in a two-dimensional spin-orbit-coupled Fermi gas
- Pairing sizes in attractively interacting Fermi gases with Spin-orbit Couplings
- Signatures of pairing and spin-orbit coupling in correlation functions of Fermi gases
- Effect of the particle-hole channel on BCS--Bose-Einstein condensation crossover in atomic Fermi gases
- Influence of Induced Interactions on Superfluid Properties of Quasi-Two Dimensional Dilute Fermi Gases With Spin-Orbit Coupling
- Fluctuation Theory of Rashba Fermi Gases
- Topological effects on transition temperatures and response functions in three-dimensional Fermi superfluids
- Comment on Influence of induced interactions on superfluid properties of quasi-two-dimensional dilute Fermi gases with spin-orbit coupling
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- Phase diagram, band structure and density of states in two-dimensional attractive Fermi-Hubbard model with Rashba spin-orbit coupling
- A universal pairing gap measurement proposal by dynamical excitations in 2D doped attractive Fermi-Hubbard model with spin-orbit coupling
- Critical temperature in the BCS-BEC crossover with spin-orbit coupling