经典场论受随机噪声作用的有效势
统计力学
2007-05-23 v3 chao-dyn
高能物理 - 理论
混沌动力学
摘要
经典场论耦合随机噪声是一种极为强大的建模工具,可用于描述从湍流、图案形成到宇宙结构演化等多种现象。在本文中,我们概述了一种将此类系统映射到场论语言的通用形式alism,并演示如何提取耦合高斯噪声的任意经典场论的一循环物理。噪声两点函数的�幅作为环计数参数,相当于量子场论中普朗克常数hbar的作用。我们定义了有效行动和有效势,并推导了耦合Translation不变高斯噪声的经典场论的通用一循环有效势公式。
引用
@article{arxiv.cond-mat/9904207,
title = {Effective potential for classical field theories subject to stochastic noise},
author = {David Hochberg and Carmen Molina-Paris and Juan Perez-Mercader and Matt Visser},
journal= {arXiv preprint arXiv:cond-mat/9904207},
year = {2007}
}
备注
5 pages, LaTeX 209, ReV_TeX 3.2. V2: Cosmetic changes to improve handling of Fadeev--Popov ghosts. V3: References updated. This paper has now been superseded and the contents of this paper have now been incorporated into cond-mat/9904215 [Phys. Rev. E60 (1999) 6343-6360]; cond-mat/9904391 [Physica A280 (2000) 437-455]; and cond-mat/9904413 [Phys. Lett. A, in press]