arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1803.08083quant-ph
收藏

量子Rabi模型的等能循环

Isoenergetic cycle for the quantum Rabi model

G. Alvarado Barrios, Francisco J. Peña, F. Albarrán-Arriagada, P. Vargas, J. C. Retamal

摘要:

等能循环是一个纯机械循环,由不动过程和等能过程组成。在后者中,系统与保持哈密顿量的期望值恒定的能量池相互作用。这个循环主要是在由被限制在幂律陷阱中的粒子组成的系统中研究的。在这项工作中,我们研究的情况下,控制的耦合强度参数,谐振腔频率和二能级系统的频率的量子拉比模型描述的系统的等能循环的性能。对于控制耦合强度参数或谐振器频率的情况,我们发现当在第一绝热阶段充分增加参数时,可以达到最大的单位效率。此外,对于前两种情况,在对应于高效率的参数值处获得提取的最大功,这构成了对该循环的当前提议的改进。

英文摘要:

The isoenergetic cycle is a purely mechanical cycle comprised of adabatic and isoenergetic processes. In the latter the system interacts with an energy bath keeping constant the expectation value of the Hamiltonian. This cycle has been mostly studied in systems consisting of particles confined in a power-law trap. In this work we study the performance of the isoenergetic cycle for a system described by the quantum Rabi model for the case of controlling the coupling strength parameter, the resonator frequency and the two-level system frequency. For the cases of controlling either the coupling strength parameter or the resonator frequency, we find that it is possible to reach maximal unit efficiency when the parameter is sufficiently increased in the first adiabatic stage. In addition, for the first two cases the maximal work extracted is obtained at parameter values corresponding to high efficiency which constitutes an improvement over current proposals of this cycle.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑