Metastable states in a class of long-range Hamiltonian systems

被引：41

作者：

Campa, A

Giansanti, A

Moroni, D

机构：

[1] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

[2] INFM, I-00185 Rome, Italy

[3] Ist Super Sanita, Lab Fis, I-00161 Rome, Italy

[4] INFN, Sez Roma 1, I-00161 Rome, Italy

[5] Univ Amsterdam, Dept Chem Engn, NL-1018 WV Amsterdam, Netherlands

来源：

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2002年 / 305卷 / 1-2期

关键词：

Hamiltonian dynamics; long-range interactions; metastable states; nonextensive statistical mechanics;

D O I：

10.1016/S0378-4371(01)00652-5

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We numerically show that metastable states, similar to the quasi-stationary states found in the so-called Hamiltonian Mean Field Model, are also present in a generalized model in which N classical spins (rotators) interact through ferromagnetic couplings decaying as r(-alpha), where r is their distance over a regular lattice. Scaling laws with N are briefly discussed. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：137 / 143

页数：7

共 27 条

[1] Breakdown of exponential sensitivity to initial conditions: Role of the range of interactions [J].