ε展开中三耦合常数模型三维不动点的稳定性:三圈结果
统计力学
2009-10-31 v1
摘要
在ε展开方法下,我们研究了具有三个四次耦合常数的模型的重整化群流结构,计算至三圈阶。观察到三维稳定不动点的本征值指数存在二重简并,并研究了级数中出现√ε幂次的可能性。讨论了ε展开方法对该模型的可靠性和有效性。
引用
@article{arxiv.cond-mat/9802064,
title = {On stability of the three-dimensional fixed point in a model with three coupling constants from the $\epsilon$ expansion: Three-loop results},
author = {Andrei Mudrov and Konstantin Varnashev},
journal= {arXiv preprint arXiv:cond-mat/9802064},
year = {2009}
}
备注
14 pages, LaTeX, no figures. To be published in Phys. Rev. B, V.57 (1998)