%0 Journal Article
%A Dobado González, Antonio
%A Llanes Estrada, Felipe José
%A Torres Rincón, Juan Miguel
%T The status of the KSS bound and its possible violations (how perfect can a fluid be?)
%D 2008
%@ 0094-243X
%U https://hdl.handle.net/20.500.14352/50652
%X 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.
%~