Controlling work output and coherence in finite-time quantum Otto engines through monitoring

被引:0
作者
Shastri, Rahul [1 ]
Venkatesh, B. Prasanna [1 ]
机构
[1] Indian Inst Technol Gandhinagar, Palaj 382055, Gujarat, India
关键词
THERMODYNAMICS;
D O I
10.1103/PhysRevE.109.014102
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 examine the role of diagnostic quantum measurements on the work statistics of a finite-time quantum Otto heat engine operated in the steady state. We consider three pointer-based measurement schemes that differ in the number of system-pointer interactions and pointer measurements. We show that the coherence of the working substance and the work output of the engine can be controlled by tuning the monitoring measurements. Moreover, for a working substance consisting of a two-level system we show that while all three schemes reproduce the predictions of the cycle without any monitoring for the average work in the limit of infinitely weak measurement, only two of the schemes can reproduce the two-point projective measurement results in the limit of strong measurement.
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页数:12
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