Quantum work statistics of linear and nonlinear parametric oscillators

被引：60

作者：

Deffner, Sebastian ^{[1
]}

Abah, Obinna ^{[1
]}

Lutz, Eric ^{[1
]}

机构：

[1] Univ Augsburg, Dept Phys, D-86135 Augsburg, Germany

来源：

CHEMICAL PHYSICS | 2010年 / 375卷 / 2-3期

关键词：

Nanothermodynamics; Nonequilibrium statistics; Ion traps; FREE-ENERGY DIFFERENCES; NONEQUILIBRIUM MEASUREMENTS; EQUALITY; EQUATIONS;

D O I：

10.1016/j.chemphys.2010.04.042

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 consider the nonequilibrium work distribution of a quantum oscillator with modulated angular frequency. We examine the discrete-to-continuous transition of the distribution as the temperature and the degree of nonadiabaticity of the frequency transformation are increased. We further develop a perturbative approach to analyze the effect of weak quartic anharmonicities, as well as of a random electric field on a charged oscillator. We find in both cases that the degree of nonadiabaticity is enhanced by the perturbation. (C) 2010 Elsevier B. V. All rights reserved.

引用

页码：200 / 208

页数：9

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