Document Type
Article
Department/Program
Physics
Journal Title
Physical Review Letters
Pub Date
2016
Volume
117
Issue
4
Abstract
The recent experimental realization of spin-orbit coupled Fermi gases provides a unique opportunity to study the interplay between strong interaction and spin-orbit coupling (SOC) in a tunable, disorder-free system. We present here precision ab initio numerical results on the two-dimensional, unpolarized, uniform Fermi gas with attractive interactions and Rashba SOC. Using the auxiliary-field quantum Monte Carlo method and incorporating recent algorithmic advances, we carry out exact calculations on sufficiently large system sizes to provide accurate results systematically as a function of experimental parameters. We obtain the equation of state, the momentum distributions, the pseudospin correlations, and the pair wave functions. Our results help illuminate the rich pairing structure induced by SOC, and provide benchmarks for theory and guidance to future experimental efforts.
Recommended Citation
Shi, Hao; Rosenberg, Peter; Chiesa, Simone; and Zhang, Shiwei, Rashba Spin-Orbit Coupling, Strong Interactions, and the BCS-BEC Crossover in the Ground State of the Two-Dimensional Fermi Gas (2016). Physical Review Letters, 117(4).
10.1103/PhysRevLett.117.040401
DOI
10.1103/PhysRevLett.117.040401
