Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2007-03-14
Eur.Phys.J.C51:913-918,2007
Physics
High Energy Physics
High Energy Physics - Theory
6 pages, 4 figures
Scientific paper
10.1140/epjc/s10052-007-0332-5
A computation of the quotient of shear viscosity to entropy density, or KSS number $\eta/s$ is performed, in the non-relativistic and classical regime, first in Chiral Perturbation Theory, and then in the $SO(g+1)/SO(g)$ Non-Linear Sigma Model in the large $g$ limit. Both are field theories stemming from a renormalizable Sigma Model but in spite of that, we explicitly calculate how one undercomes the KSS bound by increasing the number of degenerate pions sufficiently. However we argue that particle production could still keep the validity of the KSS bound in the weak sense. We also show how a large number of molecular isomers (that we estimate in terms of simple molecular properties) could undercome the bound in the strong sense. This might be possible with carbon-based molecules. We finally argue that a measurement of $\eta/s$ in Heavy Ion Collisions might be turned into an upper bound on the number of hadron resonances.
Dobado Antonio
Llanes-Estrada Felipe J.
No associations
LandOfFree
On the violation of the holographic viscosity versus entropy KSS bound in non relativistic systems does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with On the violation of the holographic viscosity versus entropy KSS bound in non relativistic systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the violation of the holographic viscosity versus entropy KSS bound in non relativistic systems will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-715813