低温 Ising 系统核化速率预系数中的调制
统计力学
2009-11-07 v2
摘要
使用广义 Becker-Dorfling 方法在多维簇配置空间中研究了具最近邻相互作用和连续时间动力学的亚稳态晶格气体。发现亚稳态寿命(核化速率的倒数)的预系数在倒数 supersaturation 的整数值处表现出明显的峰值。在严格极限 T->0 时峰值不可观测(无限窄),但在较高温度下变为可检测并最终占据主导地位。
引用
@article{arxiv.cond-mat/0201064,
title = {Modulation of the nucleation rate pre-exponential in a low-temperature Ising system},
author = {Vitaly A. Shneidman and Gelu M. Nita},
journal= {arXiv preprint arXiv:cond-mat/0201064},
year = {2009}
}
备注
4 pages, 2 Postscript figures, LaTeX, submitted to Phys. Rev. Lett. Changes: updated references, re-written section around eqs.(5),(6), typos, minor wording changes in conclusion and other parts of text (mostly in response to referees' comments). Paper resubmitted to PRL