Quantum phases of atomic Fermi gases with anisotropic spin-orbit coupling

被引:29
|
作者
Iskin, M. [1 ]
Subasi, A. L. [2 ]
机构
[1] Koc Univ, Dept Phys, TR-34450 Istanbul, Turkey
[2] Istanbul Tech Univ, Fac Sci & Letters, Dept Phys, TR-34469 Istanbul, Turkey
来源
PHYSICAL REVIEW A | 2011年 / 84卷 / 04期
关键词
TEMPERATURE;
D O I
10.1103/PhysRevA.84.043621
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We consider a general anisotropic spin-orbit coupling and analyze the phase diagrams of both balanced and imbalanced Fermi gases for the entire BCS-BEC evolution. In the first part, we use the self-consistent mean-field theory at zero temperature, and show that the topological structure of the ground-state phase diagrams is quite robust against the effects of anisotropy. In the second part, we go beyond the mean-field description, and investigate the effects of Gaussian fluctuations near the critical temperature. This allows us to derive the time-dependent Ginzburg-Landau theory, from which we extract the effective mass of the Cooper pairs and their critical condensation temperature in the molecular BEC limit.
引用
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页数:10
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