Diffusion of Classical Solitons
凝聚态物理
2009-10-31 v1
摘要
We study the diffusion and deformation of classical solitons coupled to thermal noise. The diffusion coefficient for kinks in the theory is predicted up to the second order in . The prediction is verified by numerical simulations. Multiskyrmions in the vector O(3) sigma model are studied within the same formalism. Thermal noise results in a diffusion on the multisoliton collective coordinate space (moduli space). There are entropic forces which tend, for example, to bind pairs of solitons into bi-solitonic molecules.
引用
@article{arxiv.cond-mat/9802039,
title = {Diffusion of Classical Solitons},
author = {J. Dziarmaga and W. Zakrzewski},
journal= {arXiv preprint arXiv:cond-mat/9802039},
year = {2009}
}
备注
5 Revtex pages, 2 .ps files