| 多体非对称纠缠信道的量子受控密集编码 |
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| 引用本文： | 张程贤,郭邦红,程广明,郭建军,刘颂豪. 多体非对称纠缠信道的量子受控密集编码[J]. 计算机科学, 2014, 41(12): 53-56,69 |
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| 作者姓名： | 张程贤 郭邦红 程广明 郭建军 刘颂豪 |
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| 作者单位： | 华南师范大学信息光电子科技学院 广东省微纳光子功能材料与器件重点实验室 广州510631 |
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| 基金项目： | 本文受广东省自然科学基金重点项目(10251063101000001),广东省教育部省部产学研项目(2012B091100063)资助 |
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| 摘 要： | 利用多粒子非对称量子纠缠态,提出一种多体高维非对称量子信道的量子受控密集编码方案。采用量子测量的方法控制纠缠量子信道和密集编码经典信息的传送,通过构造幺正变换矩阵和正交量子测量,纯化量子信道,以一定的概率实现量子受控密集编码,解决了实际量子信道退相干影响下最大纠缠态提取的问题,实现了N方发送方和1方接收方之间密集编码传送信息量的控制,提高了密集编码可调控传送信息量,扩大了调控范围。
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| 关 键 词： | 受控密集编码 非对称信道 纠缠态 Von Neumann测量 信息量 幺正变换 |
| 收稿时间： | 2013-12-19 |
| 修稿时间： | 2014-01-28 |
Controlled Dense Coding Using Non-symmetric Channel between Multi-parties |
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| ZHANG Cheng-xian,GUO Bang-hong,CHENG Guang-ming,GUO Jian-jun and LIU Song-hao. Controlled Dense Coding Using Non-symmetric Channel between Multi-parties[J]. Computer Science, 2014, 41(12): 53-56,69 |
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| Authors: | ZHANG Cheng-xian GUO Bang-hong CHENG Guang-ming GUO Jian-jun LIU Song-hao |
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| Affiliation: | Laboratory of Nanophotonic Functional Materials and Devices,School of Information and Optoelectronic Science and Engineering,South China Normal University,Guangzhou 510631,China;Laboratory of Nanophotonic Functional Materials and Devices,School of Information and Optoelectronic Science and Engineering,South China Normal University,Guangzhou 510631,China;Laboratory of Nanophotonic Functional Materials and Devices,School of Information and Optoelectronic Science and Engineering,South China Normal University,Guangzhou 510631,China;Laboratory of Nanophotonic Functional Materials and Devices,School of Information and Optoelectronic Science and Engineering,South China Normal University,Guangzhou 510631,China;Laboratory of Nanophotonic Functional Materials and Devices,School of Information and Optoelectronic Science and Engineering,South China Normal University,Guangzhou 510631,China |
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| Abstract: | A scheme of controlled dense coding was proposed by using multi-parties in non-symmetric and high dimensional quantum channel.The quantum channel and the amount of the classic information of dense coding are controlled with the method of quantum measurement.By performing some unitary operations and some orthogonal quantum mea-surements on the quantum state,the quantum channel is purified.Thus,controlled dense coding is realized with some probability.It solves the extraction of the maximally quantum state in the case of decoherence in the practical quantum channel.It is successful to control dense coding between the N senders and the receiver and the efficiency of controlled dense coding is improved. |
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| Keywords: | Controlled dense coding Non-symmetric channel Entangled state Von neumann measurement Amount of information Unitary transformation |
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