On the origin of power laws in equilibrium

被引：8

作者：

Campisi, Michele ^{[1
]}

Zhan, Fei ^{[2
]}

Haenggi, Peter ^{[1
]}

机构：

[1] Univ Augsburg, Inst Phys, D-86159 Augsburg, Germany

[2] Peking Univ, Int Ctr Quantum Mat, Beijing 100871, Peoples R China

来源：

EPL | 2012年 / 99卷 / 06期

关键词：

NEGATIVE SPECIFIC-HEAT; PHASE-TRANSITIONS; SYSTEMS;

D O I：

10.1209/0295-5075/99/60004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A particle in the attractive Coulomb field has an interesting property: its specific heat is constant and negative. We show, both analytically and numerically, that when a classical Hamiltonian system stays in weak contact with one such negative specific heat object, its statistics conforms to a fat-tailed power-law distribution with power index given by C/k(B) - 1, where k(B) is the Boltzmann constant and C is the heat capacity. Copyright (C) EPLA, 2012

引用

页数：5

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