Sum rule for fluctuations of work

被引：0
|
作者：
Park, Hyogeon [1 ]
Kim, Yong Woon [1 ]
Yi, Juyeon [2 ]
机构：
[1] Korea Adv Inst Sci & Technol, Dept Phys, Deajeon 34141, South Korea
[2] Pusan Natl Univ, Dept Phys, Busan 46241, South Korea
来源：
PHYSICAL REVIEW E | 2024年 / 110卷 / 03期
关键词：
ENTROPY PRODUCTION; QUANTUM;
D O I：
10.1103/PhysRevE.110.034108
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
We study the fluctuations of work caused by applying cyclic perturbations and obtain an exact sum rule satisfied by the moments of work for a broad class of quantum stationary ensembles. In the case of the canonical ensemble, the sum rule reproduces the Jarzynski equality. The sum rule can also be simplified into a linear relationship between the work average and the second moment of work, which we numerically confirm via an exact diagonalization of a spin model system.
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页数：9
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