激光与光电子学进展, 2019, 56 (21): 212701, 网络出版: 2019-11-02
基于交叉克尔非线性和金刚石氮空穴色心-微环谐振腔的W态向GHZ态的转换 
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Converting W-State into GHZ-State Based on Cross-Kerr Nonlinearity and Coupling Systems of Nitrogen-Vacancy Color Center in Diamond and Microtoroidal Resonator
量子光学 量子信息处理 微环谐振腔 W态 GHZ态 quantum optics quantum information processing microtoroidal resonator W-state GHZ-state
摘要
提出一种实现量子纠缠态转化的方案。该方案是基于金刚石氮空穴(NV)色心和微环谐振腔(MTR)耦合实现量子控制非(CNOT)门,并借助交叉克尔非线性实现量子纠缠W态向GHZ态的转化。经过理论分析,本方案在当前实验条件下具备较高的转化效率,会对量子纠缠态制备及量子信息处理的实现提供一些有效的帮助。
Abstract
In this study, we propose a scheme to transform quantum entangled states. In this scheme, a quantum controlled-not (CNOT) gate is realized in coupling systems of the nitrogen-vacancy (NV) color center in diamond and microtoroidal resonators (MTR). A quantum entangled W-state is converted to an entangled GHZ-state based on the cross-Kerr nonlinearity. The scheme displays a high conversion efficiency under the current experimental conditions. This may effectively assist in the preparation of quantum entangled states and the implementation of quantum information processing.
冯帅, 王泰安, 张勇. 基于交叉克尔非线性和金刚石氮空穴色心-微环谐振腔的W态向GHZ态的转换[J]. 激光与光电子学进展, 2019, 56(21): 212701. Shuai Feng, Taian Wang, Yong Zhang. Converting W-State into GHZ-State Based on Cross-Kerr Nonlinearity and Coupling Systems of Nitrogen-Vacancy Color Center in Diamond and Microtoroidal Resonator[J]. Laser & Optoelectronics Progress, 2019, 56(21): 212701.
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