Nonperturbative calculation of the shear viscosity in hot φ4 theory in real time

被引：38

作者：

Wang, E ^{[1
]}

Heinz, U

机构：

[1] Huazhong Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China

[2] CERN, Div Theoret Phys, CH-1211 Geneva 23, Switzerland

来源：

PHYSICS LETTERS B | 1999年 / 471卷 / 2-3期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/S0370-2693(99)01324-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Starting from the Kubo formula we calculate the shear viscosity in hot phi(4) theory nonperturbatively by resumming ladders with a real-time version of the Bethe-Salpeter equation at finite temperature. In the weak coupling limit, the generalized Fluctuation-Dissipation Theorem is shown to decouple the Bethe-Salpeter equations for the different real-time components of the 4-point function. The resulting scalar integral equation is identical with the one obtained by Jeon using diagrammatic "cutting rules" in the Imaginary Time Formalism, (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：208 / 213

页数：6

共 13 条

[1]

[Anonymous], 1974, NONEQUILIBRIUM STAT

[2] IRREVERSIBILITY AND GENERALIZED NOISE [J].

CALLEN, HB ;

WELTON, TA .

PHYSICAL REVIEW, 1951, 83 (01) :34-40

[3] EQUILIBRIUM AND NONEQUILIBRIUM FORMALISMS MADE UNIFIED [J].

CHOU, KC ;

SU, ZB ;

HAO, BL ;

YU, L .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1985, 118 (1-2) :1-131

[4] NONEQUILIBRIUM THERMODYNAMICS IN FIELD-THEORY - TRANSPORT-COEFFICIENTS [J].

HOSOYA, A ;

SAKAGAMI, M ;

TAKAO, M .

ANNALS OF PHYSICS, 1984, 154 (01) :229-252

[5] COMPUTING SPECTRAL DENSITIES IN FINITE-TEMPERATURE FIELD-THEORY [J].

JEON, SY .

PHYSICAL REVIEW D, 1993, 47 (10) :4586-4607

[6]

KELDYSH LV, 1965, SOV PHYS JETP-USSR, V20, P1018

[7] STATISTICAL-MECHANICAL THEORY OF IRREVERSIBLE PROCESSES .1. GENERAL THEORY AND SIMPLE APPLICATIONS TO MAGNETIC AND CONDUCTION PROBLEMS [J].

KUBO, R .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1957, 12 (06) :570-586

[8] ON THE FORMULATION OF QUANTIZED FIELD THEORIES .2. [J].

LEHMANN, H ;

SYMANZIK, K ;

ZIMMERMANN, W .

NUOVO CIMENTO, 1957, 6 (02) :319-333

[9]

PARWANI RR, 1992, PHYS REV D, V53, P4595

[10] BROWNIAN MOTION OF A QUANTUM OSCILLATOR [J].

SCHWINGER, J .

JOURNAL OF MATHEMATICAL PHYSICS, 1961, 2 (03) :407-&

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