title: Rashba Spin-Orbit Coupling, Strong Interactions, and the BCS-BEC Crossover in the Ground State of the Two-Dimensional Fermi Gas.
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.
authors: Department of Physics, College of William and Mary, Williamsburg, Virginia 23187, USA.
authors: Hao
authors: H
authors: Shi
authors: Department of Physics, College of William and Mary, Williamsburg, Virginia 23187, USA.
authors: Peter
authors: P
authors: Rosenberg
authors: Department of Physics, College of William and Mary, Williamsburg, Virginia 23187, USA.
authors: Simone
authors: S
authors: Chiesa
authors: Department of Physics, College of William and Mary, Williamsburg, Virginia 23187, USA.
authors: Shiwei
authors: S
authors: Zhang