论文标题
通过腔体辅助相互作用实施两光子三度超平行的相位翻转门
Implementing two-photon three-degree-of-freedom hyper-parallel controlled phase flip gate through cavity-assisted interactions
论文作者
论文摘要
超平行量子信息处理是一个有希望的有益的研究领域。在本文中，我们提出了一种通过将飞行光子偶联到被困的氮空位（NV）缺陷中心来实现频率，空间和时间键编码的频率的超平行控制型相（超CPF）门。该方案与它们的常规平行对应物不同，在减少耗散噪声，增加量子通道容量并减少量子资源开销方面特别有利。带有频率，空间和时态自由度（DOF）的栅极Qubits在光纤中免疫量子反应性，而偏振光子很容易受到环境噪声的干扰。
Hyper-parallel quantum information processing is a promising and beneficial research field. In this paper, we present 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. 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.
