Renormalization group theory for the imbalanced fermi gas

被引:56
作者
Gubbels, K. B. [1 ]
Stoof, H. T. C. [1 ]
机构
[1] Univ Utrecht, Inst Theoret Phys, NL-3584 CE Utrecht, Netherlands
关键词
D O I
10.1103/PhysRevLett.100.140407
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We formulate a Wilsonian renormalization group theory for the imbalanced Fermi gas. The theory is able to recover quantitatively well-established results in both the weak-coupling and the strong-coupling (unitarity) limits. We determine for the latter case the line of second-order phase transitions of the imbalanced Fermi gas and, in particular, the location of the tricritical point. We obtain good agreement with the recent experiments of Y. Shin et al. [Nature (London) 451, 689 (2008)].
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页数:4
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