NONLINEAR RESPONSE OF A DISSIPATIVE BLOCH PARTICLE IN AN OSCILLATING FIELD

被引：9

作者：

CHEN, YC ^{[1
]}

LEBOWITZ, JL ^{[1
]}

机构：

[1] RUTGERS STATE UNIV,DEPT MATH,NEW BRUNSWICK,NJ 08903

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.69.3559

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the Caldeira-Leggett model of a particle coupled to a heat bath moving in a periodic cosine potential. In the limit of small viscosity we obtain an integral equation for the nonlinear response of the system to a constant or a slowly oscillating field. The equation is derived by a resummation of the infinite series expansion in the strength of the cosine potential. When solved via a self-consistent approximation it gives an analytic expression for the response function. Applications to Josephson junctions driven by a low-frequency source are discussed.

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页码：3559 / 3562

页数：4

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