Hyper‐parallel quantum information processing is a promising and beneficial research field. Herein, a method to implement a hyper‐parallel controlled‐phase‐flip (hyper‐CPF) gate for frequency‐, spatial‐, and time‐bin‐encoded qubits by coupling flying photons to trapped nitrogen vacancy (NV) defect centers is presented. The scheme, which differs from their conventional parallel counterparts, is specifically advantageous in decreasing against the dissipate noise, increasing the quantum channel capacity, and reducing the quantum resource overhead. The gate qubits with frequency, spatial, and time‐bin degrees of freedom (DOF) are immune to quantum decoherence in optical fibers, whereas the polarization photons are easily disturbed by the ambient noise.

中文翻译：

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通过腔辅助相互作用实现两光子三自由度超并联控制的相位翻转门

超并行量子信息处理是一个有前途和有益的研究领域。本文提出了一种通过将飞行的光子耦合到捕获的氮空位（NV）缺陷中心来实现频率，空间和时间bin编码量子位的超并行控制相翻转（hyper-CPF）门的方法。该方案与常规并行方案不同，在减少耗散噪声，增加量子通道容量和减少量子资源开销方面特别有利。具有频率，空间和时域自由度（DOF）的门量子比特不受光纤中量子退相干的影响，而偏振光子很容易受到环境噪声的干扰。