Mukherjee V, Niedenzu W, Kofman A G, Kurizki G
Department of Chemical Physics, Weizmann Institute of Science, Rehovot 7610001, Israel.
CEMS, RIKEN, Saitama 351-0198, Japan.
Phys Rev E. 2016 Dec;94(6-1):062109. doi: 10.1103/PhysRevE.94.062109. Epub 2016 Dec 6.
We present a comprehensive theory of heat engines (HE) based on a quantum-mechanical "working fluid" (WF) with periodically modulated energy levels. The theory is valid for any periodicity of driving Hamiltonians that commute with themselves at all times and do not induce coherence in the WF. Continuous and stroke cycles arise in opposite limits of this theory, which encompasses hitherto unfamiliar cycle forms, dubbed here hybrid cycles. The theory allows us to discover the speed, power, and efficiency limits attainable by incoherently operating multilevel HE depending on the cycle form and the dynamical regimes.
我们基于具有周期性调制能级的量子力学“工作介质”（WF）提出了一种热机（HE）的综合理论。该理论适用于驱动哈密顿量的任何周期性，这些哈密顿量在任何时候都与自身对易且不会在WF中诱导相干性。连续循环和冲程循环出现在该理论的相反极限中，该理论涵盖了迄今为止不熟悉的循环形式，在此称为混合循环。该理论使我们能够发现非相干运行的多级热机根据循环形式和动力学 regime 可达到的速度、功率和效率极限。
