| 基于4粒子纠缠态的未知3粒子态概率量子隐形传态 |
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| 引用本文： | 王妍妍,王景燕,侯奎,史守华.基于4粒子纠缠态的未知3粒子态概率量子隐形传态[J].安徽大学学报(自然科学版),2012(4):48-52. |
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| 作者姓名： | 王妍妍 王景燕 侯奎 史守华 |
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| 作者单位： | 安徽大学物理与材料科学学院;安徽建筑工业学院数理系;安徽文达信息工程学院院长办公室 |
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| 基金项目： | 安徽省教育厅优秀青年人才自然科学基金重点项目资助(2012SQRL136ZD) |
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| 摘 要： | 使用4粒子纠缠态作为量子信道,在对4粒子纠缠态的纠缠系数方面并没有做确切要求的前提下,完成了未知3粒子纠缠态的隐形传态.在传输过程中,发送方对2对粒子进行Bell测量并公布结果,然后再对4粒子中的一个粒子作Hadamard操作之后,也对其进行测量,且将测量结果通过经典信道公布.接收方引进2个辅助粒子并实施一次控制非操作,再进行一组适当的幺正变换,便可实现未知3粒子纠缠态的概率量子隐形传态.
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| 关 键 词： | 量子信道 隐形传态 纠缠态 幺正变换 Bell态测量 |
Probabilistic teleportation of an unknown three-particle state via a four-qubit entangled state |
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| WANG Yan-yan,WANG Jing-yan,HOU Kui,SHI Shou-hua.Probabilistic teleportation of an unknown three-particle state via a four-qubit entangled state[J].Journal of Anhui University(Natural Sciences),2012(4):48-52. |
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| Authors: | WANG Yan-yan WANG Jing-yan HOU Kui SHI Shou-hua |
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| Institution: | 1,3(1.School of Physics and Material Science,Anhui University,Hefei 230039,China; 2.Department of Mathematics and Physics,Anhui University of Architecture,Hefei 230601,China; 3.Dean’s Office,Anhui Wonder University of Information and Engineering,Hefei 231201,China) |
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| Abstract: | By using a four-qubit non-maximally entangled state as quantum channel,under the condition of whose coefficients were unknown,a scheme of an unknown three-partical state’s teleportation was proposed.In the process of transmission the sender performed Bell state measurements to two pairs of particles and released finding,then completed a quantum controlled Hadamard gate operation and Bell state measurement to one of four particles,finally released finding via classical channel.By introducing two ancillary qubits,adopting a Controlled-Not gate and constructing a unitary transformation properly,the probabilistic teleportation of three-particle entangled state could be accomplished. |
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| Keywords: | quantum channel teleportation entangled state unitary transformation Bell state measurement |
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