通过微腔的鲁棒保真度超并行受控相位翻转门
Robust-fidelity hyperparallel controlled-phase-flip gate through microcavities
摘要：
超并行量子信息处理在信道容量、低丢失率和处理速度方面优于传统并行处理。我们提出了一种通过微腔实现鲁棒超并行光控相位翻转门的方法。门同时作用于偏振和空间自由度，防止光子与量子点之间不完全和不期望的相互作用。有趣的是，该门的单位保真度原则上是可以实现的，并且该门的成功是由单光子探测器预示的。
英文摘要：
Hyperparallel quantum information processing outperforms its traditional parallel one in terms of channel capacity, low loss rate, and processing speed. We present a way for implementing a robust hyper-parallel optical controlled-phase-flip gate through microcavities. The gate acts on polarization and spatial degrees of freedom (DOFs) simultaneously, and the incomplete and undesired interactions between photons and quantum dots are prevented. Interestingly, the unity fidelity of the gate can be achieved in principle, and the success of the gate is heralded by the single-photon detectors.
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