Shock waves in strongly coupled plasmas II

被引：14

作者：

Khlebnikov, Sergei ^{[1
]}

Kruczenski, Martin ^{[1
]}

Michalogiorgakis, Georgios ^{[1
]}

机构：

[1] Purdue Univ, Dept Phys, W Lafayette, IN 47907 USA

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2011年 / 07期

基金：

美国国家科学基金会;

关键词：

Gauge-gravity correspondence; AdS-CFT Correspondence; Holography and quark-gluon plasmas; TRANSVERSE-MOMENTUM; AU+AU COLLISIONS; FIELD-THEORIES; BLACK-HOLES; DISTRIBUTIONS; ENERGY;

D O I：

10.1007/JHEP07(2011)097

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：

In a recent paper we have analyzed the AdS/CFT duals to shock waves in the N = 4 plasma. Here we study further properties of the system. In description we consider the properties of the dual black holes, showing in that they are stationary black holes with expanding horizons. This is possible horizon is not compact; in the fluid, this corresponds to the situation when entropy produced and carried away to infinity. We also consider shocks in other than four and find that, for plasmas whose duals are given by asymptotically the exponential tail of the shock on the supersonic side shrinks as gamma(-2/d) as the approaches the speed of light (the Lorentz factor gamma goes to infinity). This behavior gamma(-1/2) we have found previously for d = 4. Finally, we consider shock front and show that the shock is stable under such perturbations. There are, long lived modes, excitations of which describe generation of sound by the shock the energy for this being provided by the incoming fluid.

引用

页数：34

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