Fermi surfaces and Luttinger's theorem in paired fermion systems

被引：28

作者：

Sachdev, S ^{[1
]}

Yang, K ^{[1
]}

机构：

[1] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

来源：

PHYSICAL REVIEW B | 2006年 / 73卷 / 17期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevB.73.174504

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We discuss ground state properties of a mixture of two fermion species which can bind to form a molecular boson. When the densities of the fermions are unbalanced, one or more Fermi surfaces can appear: we describe the constraints placed by Luttinger's theorem on the volumes enclosed by these surfaces in such Bose-Fermi mixtures. We also discuss the nature of the quantum phase transitions involving changes in the number of Fermi surfaces.

引用

页数：6

共 30 条

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