KSS边界的状态及其可能的违反（流体能有多完美？）
The status of the KSS bound and its possible violations (How perfect can a fluid be?)
摘要：
本文简要地回顾了具有引力对偶的量子场论中的Kovtun-Son-Starinet（KSS）计算eta/s的方法，以及与之相关的猜想，即它的下界为1/（4 π）.我们讨论的有效性的限制和其可能的违规行为的性质，其相关性的RHIC，它与相变和其他相关问题。
英文摘要：
In this work we briefly review the Kovtun-Son-Starinet (KSS) computation of the ratio eta/s for quantum field theories with gravitational dual and the related conjecture that it is bound from below by 1/(4 pi). 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.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
