Critical Discussion of the 2-Loop Calculations for the KPZ-Equation
Condensed Matter
2009-10-30 v2
Abstract
In this article, we perform a careful analysis of the renormalization procedure used in existing calculations to derive critical exponents for the KPZ-equation at 2-loop order. This analysis explains the discrepancies between the results of the different groups. The correct critical exponents in d=2+epsilon dimensions at the crossover between weak- and strong-coupling regime are zeta=O(epsilon^3) and z=2+O(epsilon^3). No strong-coupling fixed point exists at 2-loop order.
Keywords
Cite
@article{arxiv.cond-mat/9706009,
title = {Critical Discussion of the 2-Loop Calculations for the KPZ-Equation},
author = {Kay Joerg Wiese},
journal= {arXiv preprint arXiv:cond-mat/9706009},
year = {2009}
}
Comments
Rev-TeX. Some changes in the representation, conclusions unchanged