Time-resolved physical spectrum in cavity quantum electrodynamics
Time-resolved physical spectrum in cavity quantum electrodynamics
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DOI：
10.1103/physrevresearch.4.023052
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发表时间：
2022-04-20
影响因子：
4.2
通讯作者：
Ota，Yasutomo
中科院分区：
文献类型：
--
作者：
Yamaguchi，Makoto;Lyasota，Alexey;Ota，Yasutomo
对标准空腔量子电动力学系统的发光时间分辨物理光谱进行了理论研究。与稳态的功率谱相反，到目前为止的相关函数对于构建时间分辨谱至关重要，而由于因果关系，与未来数量的相关性是不可接近的，即未来数量直到未来到来才能测量。我们发现这种因果关系在理解时间分辨谱中起着关键作用，其中在拉比振荡的第一个峰值期间永远无法看到拉比重态。此外，在某些情况下，因果关系会影响拉比重态的瞬态大小。我们还研究了法诺反共振的动力学，其中与拉比双重态的区别可以突出。
The time-resolved physical spectrum of luminescence is theoretically studied for a standard cavity quantum electrodynamics system. In contrast to the power spectrum for the steady state, the correlation functions up to the present time are crucial for the construction of the time-resolved spectrum, while the correlations with future quantities are inaccessible because of the causality, i.e., the future quantities cannot be measured until the future comes. We find that this causality plays a key role in understanding the time-resolved spectrum, in which the Rabi doublet can never be seen during the time of the first peak of the Rabi oscillation. Furthermore, the causality can influence the transient magnitude of the Rabi doublet in some situations. We also study the dynamics of the Fano antiresonance, where the difference from the Rabi doublet can be highlighted.