Functional renormalization group approach to conventional theory of superfluidity and beyond

被引：1
|
作者：
Tanizaki, Y. [1 ,2 ]
Fejos, G. [2 ]
Hatsuda, T. [3 ]
机构：
[1] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan
[2] RIKEN, Nishina Ctr, Theoret Res Div, Wako, Saitama 3510198, Japan
[3] Univ Tokyo, Kavli IPMU WPI, Chiba 2778583, Japan
来源：
17TH INTERNATIONAL CONFERENCE ON RECENT PROGRESS IN MANY-BODY THEORIES (MBT17) | 2014年 / 529卷
关键词：
D O I：
10.1088/1742-6596/529/1/012027
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Fermionic functional renormalization group (FRG) is applied to describe the superfluid phase transition of the two-component fermionic system with attractive contact interaction. Connection between the fermionic FRG approach and the Bardeen-Cooper-Schrieffer (BCS) theory with its Gorkov and Melik-Barkhudarov (GMB) correction is made clear, and the FRG flow of the fermion self-energy is also studied to go beyond the BCS+GMB theory. The superfluid transition temperature and the associated chemical potential are calculated in the region of the negative scattering length using fermionic FRG.
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页数：6
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