渗流阈值以下稀释Ising模型中的反常慢弛豫
凝聚态物理
2015-06-25 v1
摘要
利用Monte Carlo技术研究了渗流阈值以下键稀释二维Ising模型的弛豫行为。监测了磁化强度M(t)的非平衡衰减以及平衡自旋-自旋自关联函数C(t)的弛豫。发现C(t)和M(t)的行为均满足拉伸指数的Kohlrausch定律，且具有相同的温度依赖指数。Kohlrausch指数似乎不依赖于键浓度。结果表明，即使C(t)和M(t)小于10^{-4}，我们仍未进入渐近区域。
引用
@article{arxiv.cond-mat/9505044,
title = {Anomalously slow relaxation in the diluted Ising model below the percolation threshold},
author = {S. Jain},
journal= {arXiv preprint arXiv:cond-mat/9505044},
year = {2015}
}
备注
33 pages, including 10 figures, tex; hard-copy available on request from [email protected] To appear in Physica A (Statistical and Theoretical Physics)