The status of the KSS bound and its possible violations (How perfect can a fluid be?)
High Energy Physics - Phenomenology
2008-11-26 v1
Abstract
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.
Keywords
Cite
@article{arxiv.0804.2601,
title = {The status of the KSS bound and its possible violations (How perfect can a fluid be?)},
author = {Antonio Dobado and Felipe J. Llanes-Estrada and Juan Miguel Torres Rincon},
journal= {arXiv preprint arXiv:0804.2601},
year = {2008}
}
Comments
10 pages, 5figs, Invited talk at "10 years of AdS/CFT Correspondence", Buenos Aires, Dec. 2007, honoring Juan Maldacena