Next-to-Leading Order Shear Viscosity in lambda phi^4 Theory
High Energy Physics - Phenomenology
2008-11-26 v2
Abstract
We show that the shear viscosity of lambda phi^4 theory is sensitive at next-to-leading order to soft physics, which gives rise to subleading corrections suppressed by only a half power of the coupling, eta = [3033.54 + 1548.3 m_{th}/T] N T^3]/[ (N+2)/3 lambda^2], with m^2_th=(N+2)/72 lambda T^2. The series appears to converge about as well (or badly) as the series for the pressure.
Keywords
Cite
@article{arxiv.0706.3692,
title = {Next-to-Leading Order Shear Viscosity in lambda phi^4 Theory},
author = {Guy D. Moore},
journal= {arXiv preprint arXiv:0706.3692},
year = {2008}
}