在粗糙势场中的扩散。
Diffusion in a rough potential.
作者信息
Zwanzig R
机构信息
University of Maryland, College Park, MD 20742.
出版信息
Proc Natl Acad Sci U S A. 1988 Apr;85(7):2029-30. doi: 10.1073/pnas.85.7.2029.
Abstract
Diffusion in a spatially rough one-dimensional potential is treated by analysis of the mean first passage time. A general expression is found for the effective diffusion coefficient, which can become very small at low temperatures.
摘要
通过对平均首次通过时间的分析来处理在空间粗糙的一维势场中的扩散问题。得到了有效扩散系数的一般表达式，该系数在低温下可能会变得非常小。
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