arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0812.4654cond-mat.dis-nncond-mat.stat-mechmath-phmath.MP
收藏

随机能量模型中关于副本数的解析性Ⅰ:配分函数矩的精确表达式

On analyticity with respect to the replica number in random energy models I: an exact expression of the moment of the partition function

Kenzo Ogure, Yoshiyuki Kabashima

摘要:

我们提供了一个精确的表达的时刻的配分函数的随机能量模型的有限系统大小,推广了较早的表达的巨正则版本的离散随机能量模型的作者在Prog。Theor. 111,661(2004)。该表达式可以处理解析和数值,这是有用的检查如何解析的时刻相对于副本号码,发挥作用的权力的时刻,可以打破热力学极限。与复型方法分析的比较表明,解析性破缺可以看作是一步复本对称性破缺的起源。该表达式的有效性也证实了有限系统的数值方法。

英文摘要:

We provide an exact expression of the moment of the partition function for random energy models of finite system size, generalizing an earlier expression for a grand canonical version of the discrete random energy model presented by the authors in Prog. Theor. Phys. 111, 661 (2004). The expression can be handled both analytically and numerically, which is useful for examining how the analyticity of the moment with respect to the replica numbers, which play the role of powers of the moment, can be broken in the thermodynamic limit. A comparison with a replica method analysis indicates that the analyticity breaking can be regarded as the origin of the one-step replica symmetry breaking. The validity of the expression is also confirmed by numerical methods for finite systems.

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。

↑