Observation of the Unconventional Photon Blockade
Observation of the Unconventional Photon Blockade
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DOI：
10.1103/physrevlett.121.043601
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发表时间：
2018-07-23
影响因子：
8.6
通讯作者：
Loffler, W.
中科院分区：
文献类型：
--
作者：
Snijder, H. J.;Frey, J. A.;Loffler, W.
我们观察到量子点腔 QED 中的非常规光子阻挡效应，与传统的光子阻挡相反，它在弱耦合状态下运行。单个量子点跃迁同时耦合到两个正交偏振光腔模式，并且通过仔细调整偏振的输入和输出状态，观察到非常规的光子阻挡效应。我们发现最小二阶相关性 g((2))(0) 近似于 0.37，对应于校正探测器抖动后 g((2))(0) 近似于 0.005，并观察预期的偏振依赖性以及光子聚束和反聚束；在参数空间中接近，这表明从相位压缩到幅度压缩的突然变化。
We observe the unconventional photon blockade effect in quantum dot cavity QED, which, in contrast to the conventional photon blockade, operates in the weak coupling regime. A single quantum dot transition is simultaneously coupled to two orthogonally polarized optical cavity modes, and by careful tuning of the input and output state of polarization, the unconventional photon blockade effect is observed. We find a minimum second-order correlation g((2))(0) approximate to 0.37, which corresponds to g((2))(0) approximate to 0.005 when corrected for detector jitter, and observe the expected polarization dependency and photon bunching and antibunching; close by in parameter space, which indicates the abrupt change from phase to amplitude squeezing.