O(N)模型的无能隙Hartree-Fock重求和方案
高能物理 - 唯象学
2009-11-11 v2 其他凝聚态物理
核理论
摘要
提出了一种对具有自发破缺O(N)对称性的lambda*phi^4理论的修正自洽Hartree-Fock近似。它保留了自洽Dyson方案（也称为Phi-可导方案）的所有理想特性，如守恒定律和热力学一致性，同时在手征对称性破缺相中尊重Nambu-Goldstone定理。讨论了各种近似重求和方案。
引用
@article{arxiv.hep-ph/0502146,
title = {Gapless Hartree-Fock Resummation Scheme for the O(N) Model},
author = {Yu. B. Ivanov and F. Riek and J. Knoll},
journal= {arXiv preprint arXiv:hep-ph/0502146},
year = {2009}
}
备注
13 pages, 10 figures / Version accepted by Phys. Rev. D: the introduction has been expanded by a few remarks in order to further clarify the goal of the paper