EXACT SOLUTION OF THE DIFFUSION PROBLEM FOR A PIECEWISE LINEAR BARRIER

被引：18

作者：

PRIVMAN, V ^{[1
]}

FRISCH, HL ^{[1
]}

机构：

[1] SUNY ALBANY,DEPT CHEM,ALBANY,NY 12222

来源：

JOURNAL OF CHEMICAL PHYSICS | 1991年 / 94卷 / 12期

关键词：

D O I：

10.1063/1.460105

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report exact results for the problem of diffusion over a barrier, for a piecewise linear potential. Full solution of the diffusion problem is obtained in the Laplace-transformed time variable. The "survival probability" of a particle not to have escaped over the barrier at large times is studied in detail, and the results are compared with the asymptotic predictions of Kramers in the large-barrier limit.

引用

页码：8216 / 8219

页数：4

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