Exact chiral invariance at finite density on the lattice

被引：9

作者：

Gavai, Rajiv V. ^{[2
]}

Sharma, Sayantan ^{[1
]}

机构：

[1] Univ Bielefeld, Fak Phys, D-33615 Bielefeld, Germany

[2] Tata Inst Fundamental Res, Dept Theoret Phys, Bombay 400005, Maharashtra, India

来源：

PHYSICS LETTERS B | 2012年 / 716卷 / 3-5期

关键词：

Chiral symmetry; Overlap fermion; Domain wall fermion; QCD at finite density; GAUGE-THEORIES; SYMMETRY; FERMIONS;

D O I：

10.1016/j.physletb.2012.08.053

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We propose a lattice action for the overlap Dirac matrix with nonzero chemical potential which is shown to preserve the chiral invariance on the lattice exactly. We further demonstrate it to arise in the domain wall formalism by letting the chemical potential count only the physically relevant wall modes. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：446 / 449

页数：4

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