| 含噪多址量子信道容量定理的求证与应用 |
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| 引用本文： | 刘静,赵生妹.含噪多址量子信道容量定理的求证与应用[J].南京邮电大学学报(自然科学版),2008,28(6). |
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| 作者姓名： | 刘静 赵生妹 |
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| 作者单位： | 南京邮电大学,信号处理与传输研究院,江苏,南京,210003 |
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| 基金项目： | 国家自然科学基金
，
江苏省自然科学基础研究计划
，
南京邮电大学科研基金
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| 摘 要： | 含噪多址量子信道的容量研究是实现量子多用户通信的基础.文中利用经典-量子纠缠产生编码定理和量子-量子纠缠产生编码定理求证了含噪多址量子信道容量定理,获得了含噪多址量子信道的经典-量子容量区域和量子-量子容量区域,并将该定理应用到多址量子相位翻转信道中,计算得到量子相位翻转信道的量子-量子容量区域,结果验证了容量定理的有效性,得到量子-量子容量区域是五边形区域.为了计算简便且不失一般性,求证过程考虑采用两输入-单输出信道的含噪多址量子信道模型.
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| 关 键 词： | 含噪多址量子信道 容量区域 相干信息 全局态 可达速率对 量子相位翻转信道 |
Proof of Capacity Theorem of Noisy Multiple Access Quantum Channels and Its Application |
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| LIU Jing,ZHAO Sheng-mei.Proof of Capacity Theorem of Noisy Multiple Access Quantum Channels and Its Application[J].Journal of Nanjing University of Posts and Telecommunications,2008,28(6). |
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| Authors: | LIU Jing ZHAO Sheng-mei |
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| Institution: | LIU Jing,ZHAO Sheng-mei Institute of Signal Processing , Transmission,Nanjing University of Posts , Telecommunication,Nanjing 210003,China |
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| Abstract: | Research on capacity of noisy multiple access quantum channels is the basis of the quantum multi-user communications.According to the classical-quantum entanglement generation theorem and the quantum-quantum entanglement generation theorem,the capacity regions,comprised classical-quantum region and quantum-quantum region,and noisy multiple access quantum channels are deduced in this paper.Then,the theorem is applied to the computation of quantum-quantum capacity region of the multiple access phase-flip chan... |
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| Keywords: | Quantum noisy multiple access channel Capacity region Coherent information Global state Achievable rate-pair Quantum phase-flip channel |
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