Small Mass Asymptotics for a Charged Particle in a Magnetic Field and Long-Time Influence of Small Perturbations

被引:15
|
作者
Cerrai, Sandra [1 ]
Freidlin, Mark [1 ]
机构
[1] Univ Maryland, Dept Math, College Pk, MD 20742 USA
基金
美国国家科学基金会;
关键词
Smoluchowski-Kramers approximation; Averaging; Stochasticity in dynamical systems; BEHAVIOR;
D O I
10.1007/s10955-011-0238-3
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We consider small mass asymptotics of the motion of a charged particle in a potential combined with a magnetic field. After an appropriate regularization, a Smoluchowski-Kramers type approximation is established. This approximation allows to study long-time influence on the motion of various perturbations, deterministic and stochastic. In particular, even in the case of pure deterministic perturbations, the long-time evolution of the perturbed system can be stochastic.
引用
收藏
页码:101 / 123
页数:23
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