QCD at nonzero density and canonical partition functions with Wilson fermions

被引：24

作者：

Alexandru, Andrei ^{[1
]}

Wenger, Urs ^{[2
]}

机构：

[1] George Washington Univ, Dept Phys, Washington, DC 20052 USA

[2] Univ Bern, Inst Theoret Phys, Albert Einstein Ctr Fundamental Phys, CH-3012 Bern, Switzerland

来源：

PHYSICAL REVIEW D | 2011年 / 83卷 / 03期

关键词：

LATTICE QCD;

D O I：

10.1103/PhysRevD.83.034502

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a reduction method for Wilson-Dirac fermions with nonzero chemical potential which generates a dimensionally reduced fermion matrix. The size of the reduced fermion matrix is independent of the temporal lattice extent and the dependence on the chemical potential is factored out. As a consequence the reduced matrix allows a simple evaluation of the Wilson fermion determinant for any value of the chemical potential and hence the exact projection to the canonical partition functions.

引用

页数：14

共 28 条

[1] Lattice QCD at finite density via a new canonical approach -: art. no. 114513 [J].

Alexandru, A ;

Faber, M ;

Horváth, I ;

Liu, KF .

PHYSICAL REVIEW D, 2005, 72 (11)

[2] Progress on a canonical finite density algorithm [J].

Alexandru, A ;

Faber, M ;

Horváth, I ;

Liu, KF .

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2005, 140 :517-522

[3] QCD thermal phase transition in the presence of a small chemical potential [J].

Allton, CR ;

Ejiri, S ;

Hands, SJ ;

Kaczmarek, O ;

Karsch, F ;

Laermann, E ;

Schmidt, C ;

Scorzato, L .

PHYSICAL REVIEW D, 2002, 66 (07)

[4] LATTICE QCD AT FINITE DENSITY [J].

BARBOUR, IM ;

DAVIES, CTH ;

SABEUR, Z .

PHYSICS LETTERS B, 1988, 215 (03) :567-572

[5]

Boriçi A, 2004, PROG THEOR PHYS SUPP, P335, DOI 10.1143/PTPS.153.335

[6]

Borici A., ARXIVHEPLAT0402035

[7] Finite density QCD via an imaginary chemical potential [J].

D'Elia, M ;

Lombardo, MP .

PHYSICAL REVIEW D, 2003, 67 (01)

[8] Winding expansion techniques for lattice QCD with chemical potential [J].

Danzer, Julia ;

Gattringer, Christof .

PHYSICAL REVIEW D, 2008, 78 (11)

[9] The QCD phase diagram for small densities from imaginary chemical potential [J].

de Forcrand, P ;

Philipsen, O .

NUCLEAR PHYSICS B, 2002, 642 (1-2) :290-306

[10] Role of the Polyakov loop in finite density QCD [J].

de Forcrand, P ;

Laliena, V .

PHYSICAL REVIEW D, 2000, 61 (03)

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