利用腔的输入和输出过程产生基于氮空缺中心的GHZ态纠缠
Generation of Greenberger-Horne-Zeilinger state of the distant nitrogen-vacancy centres in diamond via cavity input-output process
本文提出了一种替代方案实现N量子比特的氮空位中心分布在不同的光子晶体纳腔的GHZ态纠缠,该方案的实现是基于光子的输入和输出过程的。通过光子进出腔来产生额外的相移,从而产生GHZ态的纠缠。不同的极化光子对于腔中的不同自旋态产生不同的相移。我们的计算也表明即使腔的衰减很严重,我们的方法也能很好的实现GHZ态。另一方面,大的腔衰减也保证了光子的有效溢出。
n alternative scheme is proposed for the generation of an N-qubit Greenberger-Horne-Zeilinger(GHZ) state with distant nitrogen-vacancy (N-V) centers confined in spatially separated photonic crystal(PC) cavities via input-output process of photon. The GHZ state is produced by the phase shiftbrought by the input-output photon. The certain polarized photon reflected from thePC cavity obtain different phase shifts due to the different spin state in N-V centers andthe optical spin selection rule. Our calculations show that our scheme can work well witha large cavity damping rate which ensures the efficient output of photon.
郑安寿、郝向英、吕新友、李家华、吴颖
物理学
GHZ态氮空缺中心光子晶体纳腔锥形光纤
Greenberger-Horne-Zeilinger (GHZ) statenitrogen-vacancy (N-V) centerphotonic crystal (PC) nanocavitytapered fiber
郑安寿,郝向英,吕新友,李家华,吴颖.利用腔的输入和输出过程产生基于氮空缺中心的GHZ态纠缠[EB/OL].(2012-03-15)[2025-08-10].http://www.paper.edu.cn/releasepaper/content/201203-483.点此复制
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