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arXiv 0709.3774cond-mat.stat-mech
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吸收态相变:小系统的精确解

Absorbing-state phase transitions: exact solutions of small systems

Ronald Dickman

摘要:

我使用小系统的精确(数值确定的)准稳态概率分布推导出吸收态相变的精确结果。23个或更少的网站环上的接触过程的分析产生的关键属性(控制参数,序参数比,和临界指数z和β/nu_perp)的精度优于0.1%;指数nu_perp的精度约为0.5%。对接触过程也获得了良好的结果。

英文摘要:

I derive precise results for absorbing-state phase transitions using exact (numerically determined) quasistationary probability distributions for small systems. Analysis of the contact process on rings of 23 or fewer sites yields critical properties (control parameter, order-parameter ratios, and critical exponents z and beta/nu_perp) with an accuracy of better than 0.1%; for the exponent nu_perp the accuracy is about 0.5%. Good results are also obtained for the pair contact process.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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