光子
物理
量子
有损压缩
量子光学
违反直觉
量子力学
光学
光电子学
计算机科学
人工智能
作者
Yunlan Zuo,Ran Huang,Le‐Man Kuang,Xun-Wei Xu,Hui Jing
出处
期刊:Physical review
日期:2022-10-21
卷期号:106 (4)
被引量:9
标识
DOI:10.1103/physreva.106.043715
摘要
Loss-induced transparency (LIT), featuring the revival of optical intensity by adding loss, has been demonstrated in classical optics. However, a fundamental question has remained unexplored, i.e., during the process of LIT, whether quantum correlations of the photons can also be revived or even tuned by increasing the loss. Here we find that, accompanying classical LIT in a nonlinear optical-molecule system, a purely quantum effect as photon blockade (PB) indeed can be revived with the help of loss. In particular, a quantum critical point emerges in the system: below the point, adding loss leads to the suppression of optical intensity and its correlations; in contrast, by surpassing the point, PB is revived and enhanced with more losses. Also, a quantum switch between single-PB and two-PB can be realized by simply tuning the loss. Our work provides a counterintuitive strategy to engineer quantum devices in a practical lossy environment.
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