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arXiv 2402.18560quant-phcond-mat.mes-hall
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周期性驱动下的有损耗非简谐极化激元

Lossy anharmonic polaritons under periodic driving

Maicol A. Ochoa

AI总结:

本研究构建含时周期相互作用的耗散非简谐Jaynes-Cummings极化激元动力学模型,分析其稳态能量分布与量子热力学特性,揭示不同非简谐程度下的差异,证实外调制可提升能量存储能力。

摘要:

我们报道了外部周期性驱动下,耗散极化激元稳态能量分布与热力学中的非简谐特征。首先,我们针对耗散非简谐Jaynes-Cummings(杰恩斯-卡明斯)极化激元引入动力学模型,该模型包含通用时间周期性相互作用,用以表征外力或外场导致的极化激元能量调制。我们从激子、声子及相互作用能量的角度,刻画了稳态与声子非简谐性、激子-声子耦合强度、外场-极化激元耦合强度与形式的依赖关系。该模型还涵盖了受驱极化激元的量子热力学特性,我们结合不可逆热、最大功率及过程效率对其展开分析。研究发现,简谐、中等非简谐与强非简谐极化激元在能量分布和热力学性质上存在显著差异。此外,通过对比外部调制与声子、激子能量,我们得出结论:前者可提升极化激元的能量存储能力,且该能力偶尔会受激子处的干涉效应与能量饱和限制。

英文摘要:

We report on the anharmonic signatures in dissipative polaritons' stationary energy distribution and thermodynamics under external periodic driving. First, we introduce a dynamic model for the dissipative anharmonic Jaynes-Cummings polariton with a generic time-periodic interaction representing modulations of the polariton's energy due to an external force or field. We characterize the stationary state in terms of the exciton, phonon, and interaction energy dependence on the phonon anharmonicity, exciton-phonon coupling strength, and intensity and form of the external field-polariton coupling. Our model also captures the quantum thermodynamics of the driven polariton, which we analyze in connection with the irreversible heat, maximum power, and efficiency of the process. We find considerable differences in energy distribution and thermodynamics between harmonic, moderate, and strongly anharmonic polaritons. Moreover, comparing the external modulations to the phonon and exciton energy, we conclude that the former enhances the polariton's energy storage capacity and is occasionally limited by interference effects and energy saturation at the exciton.

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。

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