Rotational Brownian motion in an external potential field: A method based on the Langevin equation

被引：0
|
作者：
Kalmykov, YP
机构：
来源：
CHEMICAL PHYSICS REPORTS | 1997年 / 16卷 / 03期
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D O I：
暂无
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
A set of linear difference-differential equations for moments (averaged spherical harmonics) is derived through averaging of a nonlinear Euler-Langevin equation governing inertialess rotational motion of a polar particle in an external potential field without recourse to the Fokker-Planck equation. Thus, it has become possible to eliminate a labour-consuming step from theoretical calculations, namely, derivation of the Fokker-Planck equation from the Langevin equation and its subsequent solution. Several examples are considered.
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页码：535 / 548
页数：14
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