Berezinskii-Kosterlitz-Thoules phase transition of spin-orbit coupled Fermi gas in optical lattice
Berezinskii-Kosterlitz-Thoules phase transition of spin-orbit coupled Fermi gas in optical lattice
复制标题
光学晶格中自旋轨道耦合费米气体的Berezinskii-Kosterlitz-Thoules相变
DOI:
10.1209/0295-5075/107/40003
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发表时间:
2013-12
期刊:
影响因子:
--
通讯作者:
Lin Hai-Qing
中科院分区:
文献类型:
--
作者:
Tang Ho-Kin;Yang Xiaosen;Sun Jinhua;Lin Hai-Qing
We use a determinant quantum Monte Carlo simulation and a mean-field approach to study the Rashba spin-orbit coupled Fermi gases in square optical lattice. Notably, we show that the Berezinskii-Kosterlitz-Thoules phase transition temperature can be enhanced by the spin-orbit coupling. The superfluidity is always dominated by spin-singlet pairing when the attraction or the spin-orbit coupling increases. Moreover, the spin susceptibility is shown to be anisotropic and attends a steady value in the presence of the spin-orbit coupling.
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