Mass-imbalanced Fermi gases with spin-orbit coupling
arXiv:1107.2376 · doi:10.1103/PhysRevA.84.041610
Abstract
We use the mean-field theory to analyze the ground-state phase diagrams of spin-orbit coupled mass-imbalanced Fermi gases throughout the BCS-BEC evolution, including both the population-balanced and -imbalanced systems. Our calculations show that the competition between the mass and population imbalance and the Rashba-type spin-orbit coupling (SOC) gives rise to very rich phase diagrams, involving normal, superfluid and phase separated regions. In addition, we find quantum phase transitions between the topologically trivial gapped superfluid and the nontrivial gapless superfluid phases, opening the way for the experimental observation of exotic phenomena with cold atom systems.
4 pages with 4 figures; some changes in the context
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Cited by in corpus (4)
- Spin-Orbit Coupled Quantum Gases
- BCS-BEC crossover in spin-orbit coupled two-dimensional Fermi gases
- Short range asymptotic behavior of the wave-functions of interacting spin-half fermionic atoms with spin-orbit coupling: a model study
- BCS-BEC crossover at finite temperature in spin-orbit coupled Fermi gases