Wang Chuan, Zhang Yong, Jiao Rong-zhen, Jin Guang-sheng
School of Science, Beijing University of Posts and Telecommunications, Beijing, 100876, China.
Opt Express. 2013 Aug 12;21(16):19252-60. doi: 10.1364/OE.21.019252.
Here we investigate a physical implementation of the universal quantum controlled phase (CPHASE) gate operation on photonic qubits by using nitrogen vacancy (N-V) centers and microcavity resonators. The quantum CPHASE gate can be achieved by sending the photons through the microcavity and interacting with the N-V center. The proposed scheme can be further used for scalable quantum computation. We show that this technique provides us a deterministic source of cluster state generation on photonic qubits. In this scheme, only single photons and single N-V center are required and the proposed schemes are feasible with the current experimental technology.
在这里，我们研究了利用氮空位（N-V）中心和微腔谐振器在光子量子比特上实现通用量子控制相位（CPHASE）门操作的物理实现方式。量子CPHASE门可以通过让光子穿过微腔并与N-V中心相互作用来实现。所提出的方案可进一步用于可扩展量子计算。我们表明，该技术为我们提供了一种在光子量子比特上确定性生成簇态的源。在该方案中，仅需要单光子和单个N-V中心，并且所提出的方案在当前实验技术下是可行的。
