Current correlation function 〈j(x,t)j(x′,t′) 〉 derived from a model based on Brownian motion
作者:
J. Mathews,
M‐A. Nicolet,
期刊:
American Journal of Physics
(AIP Available online 1976)
卷期:
Volume 44,
issue 5
页码: 448-454
ISSN:0002-9505
年代: 1976
DOI:10.1119/1.10175
出版商: American Association of Physics Teachers
数据来源: AIP
摘要:
An explicit form of the autocorrelation function of the current densityj(x,t) is derived for a model in which the charge carriers independently undergo Brownian motion, as described by the Langevin equation of an individual carrier. Graphs and a table of this correlation function are given for the case of thermal equilibrium. The case where a steady‐state dc current flows is discussed briefly as well.
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