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arXiv 1908.06025cond-mat.stat-mech
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跨概率分布的关联标度普适性

Universality of scaling of correlations across probability distributions

Vaibhav Wasnik

AI总结:

本文研究任意概率分布下晶格不变系统的两点关联标度,证明其临界指数与 Boltzmann 平衡模型一致,从而将普适性推广到非 Boltzmann 分布。

摘要:

尺度不变性以及由此产生的幂律行为可见于多种系统。在本工作中,我们考虑定义在晶格上的平移、旋转和尺度不变系统,使得在每个晶格位点定义状态的变量都取相同范围的有限值,而这些值共同从一个可以是任意形式的概率分布中抽取。我们证明,描述这些系统中两点关联函数标度行为的指数,将与由临界状态下 Boltzmann 分布描述的平衡统计力学模型的标度指数一致。因此,本工作将统计力学中的普适性概念扩展到了不具有 Boltzmann 形式的概率分布。

英文摘要:

Scale invariance and the resulting power law behaviours are seen in diverse systems. In this work we consider translation, rotational and scale invariant systems defined on a lattice, such that the variables defining the state at every lattice site take on the same range of finite values, with these values collectively picked up from probability distribution that can be arbitrary. We show that the exponent that describes the scaling of the two point correlation function in these systems will match the scaling exponent of a equilibrium statistical mechanical model described by a Boltzmannian distribution at criticality. This work therefore extends the concept of universality in statistical mechanics to probability distributions that do not have a Boltzmannian form.

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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