The Status of the KSS Bound and its Possible Violations (How Perfect Can a Fluid Be
The Status of the KSS Bound and its Possible Violations (How Perfect Can a Fluid Be
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DOI：
10.1063/1.2972009
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发表时间：
2008-04
期刊：
影响因子：
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通讯作者：
A. Dobado;F. Llanes-Estrada;J. M. Rincón
中科院分区：
文献类型：
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作者：
A. Dobado;F. Llanes-Estrada;J. M. Rincón
本文简要回顾了具有引力对偶的量子场论中η/s比的Kovtun - Son - Starinet （KSS）计算方法，以及它从下到下被1/4π束缚的相关猜想。我们讨论了边界的有效性及其可能违反的性质，它与RHIC的相关性，它与相变的联系以及其他相关问题。
In this work we briefly review the Kovtun‐Son‐Starinet (KSS) computation of the ratio η/s for quantum field theories with gravitational dual and the related conjecture that it is bound from below by 1/4π. We discuss the validity of the bound and the nature of its possible violations, its relevance for RHIC, its connection with phase transitions and other related issues.