| 一种类型的未知三粒子GHZ态的辅助概率克隆 |
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| 引用本文： | 侯奎,汪菁,袁好,史守华.一种类型的未知三粒子GHZ态的辅助概率克隆[J].量子电子学报,2009,26(1):56-64. |
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| 作者姓名： | 侯奎 汪菁 袁好 史守华 |
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| 作者单位： | 安徽大学物理与材料科学学院,安徽,合肥,230039 |
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| 基金项目： | Supported by Specialized Research Fund for the Doctorial Program of Higher Education under Grant(20060357003) |
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| 摘 要： | 基于三个二粒子纠缠态作为量子信道,提出了一种类型的未知三粒子GHZ态或其正交态的概率克隆方案.该方案中,当量子信道是最大纠缠态时,通过普通的量子隐形传输过程, Bob(态的接收者)能够在其粒子上重建未知态.在Victor(态的制备者)的帮助下, Alice(态的发送方)可以一定的概率获得未知态或其正交态.随后的方案中,讨论了量子信道是非最大纠缠态时量子隐形传输的过程,在这种情况下, Bob可以一定的概率接收Alice想要传输的态,由于此过程也需要Alicc进行贝尔测量,所以在随后的克隆过程中, Alice在态的制备者的帮助下同样能以一定的概率获得未知态或其正交态.
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| 关 键 词： | 量子光学 量子克隆 三粒子GHZ态 贝尔测量 三粒子投影测量 |
| 收稿时间： | 2008/1/25 |
Assisted cloning of a class of unknown three-qubit GHZ state |
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| HOU Kui,WANG Jing,YUAN Hao,SHI Shou-hua.Assisted cloning of a class of unknown three-qubit GHZ state[J].Chinese Journal of Quantum Electronics,2009,26(1):56-64. |
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| Authors: | HOU Kui WANG Jing YUAN Hao SHI Shou-hua |
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| Abstract: | A protocol for probabilistic cloning of a class of three-qubit Greenberger-Horne-Zeilinger (GHZ) state and its orthogonal complement state by using three maximally two states as the qua山1m channel is proposed. In this protocol, Bob (the state 町ceiver) can 町ceive the unknown state via usual teleportation process. With the assistance of Victor (the state preparer) , Alice(the state sender) can produce the perfect copies and complement copies of an unknown state. A protocol for the teleportation is given by using non-maximally entangled states as quantum channel, and the clones and complement clones of unknown state also can be obtained by Alice with assistance offered by the state preparer. |
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| Keywords: | quantum optics quantum cloning three-qubit GHZ state Bell-state measurement three particle projective measurement |
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