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arXiv 2201.05370quant-phcond-mat.mes-hall
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强耦合光机混合系统中的单光子散射谱

Spectrum of Single-Photon Scattering in a Strong-Coupling Hybrid Optomechanical System

S. Y. Yang, W. Z. Jia, H. Yuan

摘要:

本文从理论上分析了强耦合混合光力学系统的单光子激发和透射谱,其中二能级系统(TLS)与机械谐振器(MR)耦合,产生Jaynes-Cummings型极化激元偶。在我们的模型中,光机械耦合和TLS-MR耦合都很强。在此参数范围内,极化子辅助的激发和再发射过程对腔的单光子激发和输出光谱有很大的影响。我们发现,即使在单量子水平上,每个边带周围的精细结构也可以用来表征TLS-MR和有效的TLS-光子耦合。因此,光谱结构可以使得灵敏地探测宏观力学元件的量子性质成为可能。我们进一步提供了一种可能的方法,利用单光子透射光谱断层重建的TLS的状态。

英文摘要:

We analyze theoretically the single-photon excitation and transmission spectra of a strong-coupling hybrid optomechanics, where a two-level system (TLS) is coupled to the mechanical resonator (MR), generating the Jaynes-Cummings-type polariton doublets. In our model, both the optomichanical coupling and the TLS-MR coupling are strong. In this parameter region, the polaron-assisted excitation and reemission processes can strongly affect the single-photon excitation and output spectra of the cavity. We find that the fine structure around each sideband can be used to characterize the TLS-MR and the effective TLS-photon couplings, even at single-quantum level. Thus, the spectrum structures may make it possible to sensitively probe the quantum nature of a macroscopic mechanical element. We further provide a possible approach for tomographic reconstruction of the state of a TLS, utilizing the single-photon transmission spectra.

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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