The Pairing of Spin-orbit Coupled Fermi Gas in Optical Lattice
Quantum Gases
2014-08-26 v1
Abstract
We investigate Rashba spin-orbit coupled Fermi gases in square optical lattice by using the determinant quantum Monte Carlo (DQMC) simulations which is free of the sign-problem. We show that the Berezinskii-Kosterlitz-Thoules phase transition temperature is firstly enhanced and then suppressed by spin-orbit coupling in the strong attraction region. In the intermediate attraction region, spin-orbit coupling always suppresses the transition temperature. We also show that the spin susceptibility becomes anisotropic and retains finite values at zero temperature.
Keywords
Cite
@article{arxiv.1312.2292,
title = {The Pairing of Spin-orbit Coupled Fermi Gas in Optical Lattice},
author = {Ho-Kin Tang and Xiaosen Yang and Jinhua Sun and Hai-Qing Lin},
journal= {arXiv preprint arXiv:1312.2292},
year = {2014}
}
Comments
10 pages, 9 figures