Eling-Oz formula for the holographic bulk viscosity

被引：9

作者：

Buchel, Alex ^{[1
,2
]}

机构：

[1] Univ Western Ontario, Dept Appl Math, London, ON N6A 5B7, Canada

[2] Perimeter Inst Theoret Phys, Waterloo, ON N2J 2W9, Canada

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2011年 / 05期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Gauge-gravity correspondence; Black Holes in String Theory; Holography and quark-gluon plasmas; GAUGE-THEORY PLASMA; FIELD-THEORIES; HYDRODYNAMICS;

D O I：

10.1007/JHEP05(2011)065

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Recently Eling and Oz [1] proposed a simple formula for the bulk viscosity of holographic plasma. They argued that the formula is valid in the high temperature (near-conformal) regime, but is expected to break down at low temperatures. We point out that the formula is in perfect agreement with the previous computations of the bulk viscosity of the cascading plasma [2, 3], as well as with the previous computations of the bulk viscosity of N = 2* plasma [4, 5]. In the latter case it correctly reproduces the critical behaviour of the bulk viscosity in the vicinity of the critical point with the vanishing speed of sound.

引用

页数：13

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