封锁
集合(抽象数据类型)
光子
物理
数学
计算机科学
量子力学
医学
内科学
程序设计语言
受体
作者
Zhuang Geng,Yongjian Chen,Yongyuan Jiang,Yan Xia,Jie Song
出处
期刊:Optics Letters
[The Optical Society]
日期:2024-05-24
卷期号:49 (11): 3026-3026
摘要
We investigate the dynamical blockade in a nonlinear cavity and demonstrate the connection between the correlation function g (2) (t) and system parameters in the entire nonlinear region. Utilizing the Liouville exceptional points (LEP s ) and quantum dynamics, a near-perfect single-photon blockade (1PB) can be achieved. By fine-tuning system parameters to approach the second-order LEP (LEP 2 ), we improved single-photon statistics in both weak and strong nonlinearity regimes, including a significant reduction of g (2) (t) and a pronounced increase in the single-photon occupation number. In the strong nonlinearity region, the maximum photon population may correspond to stronger antibunching effect. Simultaneously, the time window and period of blockade can be controlled by selecting detuning based on the LEP 2 . Furthermore, the 1PB exhibits robustness against parameter fluctuations, and this feature can be generalized to systems for implementing single-photon sources with nonharmonic energy levels.
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