Collective multiphoton blockade in cavity quantum electrodynamics
Collective multiphoton blockade in cavity quantum electrodynamics
复制标题
腔量子电动力学中的集体多光子封锁
DOI：
10.1103/physreva.95.063842
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发表时间：
2017
影响因子：
2.9
通讯作者：
Agarwal G. S.
中科院分区：
文献类型：
--
作者：
Zhu C. J.;Yang Y. P.;Agarwal G. S.
研究了单模腔中相干驱动原子的集体多光子阻塞效应。考虑两个原子与光腔的强耦合，我们证明了在光腔中可以同时观察到双光子阻塞和双光子反聚束，以及三光子阻塞和三光子反聚束。三光子封锁探测了双光子和三光子空间中的修饰态。在强耦合区，双光子和三光子阻塞强烈依赖于两个原子的位置。原子-腔耦合常数的不对称性为多光子阻塞开辟了新的途径，这也被证明是敏感的原子衰变和泵浦强度。由于原子的集体行为，这里提出的工作预测了许多新的量子统计特性，可以用于产生非经典光子对。
We present a study of collective multi-photon blockade in coherently driven atoms in a single mode cavity. Considering two atoms strongly coupled to an optical cavity, we show that the two-photon blockade with two-photon anti-bunching, and the three-photon blockade with three-photon anti-bunching can be observed simultaneously. The three-photon blockade probes both dressed states in the two photon and three photon spaces. The two photon and three photon blockades strongly depend on the location of two atoms in the strong coupling regime. The asymmetry in the atom-cavity coupling constants opens new pathways for multiphoton blockade which is also shown to be sensitive to the atomic decay and pumping strengths. The work presented here predicts many new quantum statistical features due to the collective behavior of atoms and can be useful to generate non-classical photon pairs.