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arXiv 1407.3203cond-mat.quant-gas
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Rashba自旋轨道耦合费米气体的热力学性质

Thermodynamic Properties of Rashba Spin-Orbit-Coupled Fermi Gas

Zhen Zheng, Han Pu, Xubo Zou, Guangcan Guo

摘要:

研究了Rashba自旋轨道耦合和有效塞曼场作用下超流费米气体的热力学性质。我们采用了T-矩阵计划,需要超越平均场效应,这是很重要的强相互作用系统,考虑。重点讨论了两个重要量的计算:超流转变温度和等温压缩系数。我们的计算表明面外塞曼场和面内塞曼场对费米气体的影响非常明显。我们还证实了面内塞曼场在临界温度以下诱导出Fulde-Ferrell超流体,在临界温度以上诱导出奇异的有限动量赝能隙相.

英文摘要:

We investigate the thermodynamic properties of a superfluid Fermi gas subject to Rashba spin-orbit coupling and effective Zeeman field. We adopt a T-matrix scheme that takes beyond-mean-field effects, which are important for strongly interacting systems, into account. We focus on the calculation of two important quantities: the superfluid transition temperature and the isothermal compressibility. Our calculation shows very distinct influences of the out-of-plane and the in-plane Zeeman fields on the Fermi gas. We also confirm that the in-plane Zeeman field induces a Fulde-Ferrell superfluid below the critical temperature and an exotic finite-momentum pseudo-gap phase above the critical temperature.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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