Robust gate on nitrogen-vacancy centres via quantum Zeno dynamics
Robust gate on nitrogen-vacancy centres via quantum Zeno dynamics
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DOI：
10.1088/0953-4075/44/7/075505
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发表时间：
2011-04
期刊：
影响因子：
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通讯作者：
Shou Zhang;X. Shao;Li Chen;Yongpeng Zhao;K. Yeon
中科院分区：
文献类型：
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作者：
Shou Zhang;X. Shao;Li Chen;Yongpeng Zhao;K. Yeon
在量子芝诺子空间中，通过操纵两个金刚石氮空位（NV）中心耦合到光子晶体纳米腔，直接提出了一个鲁棒栅极。由于在整个操作过程中没有空腔光子或NV中心的激发能级被填充，因此该量子门不受腔损失和NV中心自发发射的影响。严格的数值模拟结果表明，与当前实验参数相对应，栅极的平均保真度较高。
A robust gate is directly put forward by manipulating two diamond nitrogen-vacancy (NV) centres coupled to a photonic crystal nanocavity within quantum Zeno subspaces. This quantum gate is immune to both the loss of cavity and spontaneous emission of the NV centre, since no cavity photon or excited level of the NV centre is populated during the whole operation. The strictly numerical simulation shows that the average fidelity of the gate is high corresponding to the current experimental parameters.