三维Ashkin-Teller模型中极弱一级相变的蒙特卡洛研究
高能物理 - 格点
2010-02-16 v2 统计力学
摘要
我们提出将Ashkin-Teller模型的数值模拟作为研究三维中极弱一级相变的理论技术的试金石。Ashkin-Teller模型是一个简单的双自旋模型，其参数可以调整，使其具有任意弱的一级相变。在这个极限下，存在表征一级相变的普适量：我们通过蒙特卡洛模拟测量了跨越相变时比热、关联长度和磁化率的相对不连续性。
引用
@article{arxiv.hep-lat/9610032,
title = {Monte Carlo study of very weak first-order transitions in the three-dimensional Ashkin-Teller model},
author = {Peter Arnold and Yan Zhang},
journal= {arXiv preprint arXiv:hep-lat/9610032},
year = {2010}
}
备注
This is the revised version that will appear in Nuclear Physics B. Revisions include improvement of statistical error analysis, but final results not significantly changed. 50 pages, Latex, uses revtex, postscript figures included with epsf