Capacity of a channel assisted by two-mode squeezed states

Capacity of a channel assisted by two-mode squeezed states
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双模压缩态辅助的信道容量

DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
O. Hirota
O. Hirota
中科院分区：
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文献类型：
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作者：
M. Sohma;O. Hirota

文献摘要

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本文的主要目的是推导双模压缩态辅助下衰减或放大噪声量子信道的容量。在前人的工作中，我们已经得到了经典信息以非纠缠量子高斯态传输的连续可变通信信道的容量和可靠性函数的计算公式。本文研究了双模压缩态如何增强量子高斯信道上的经典通信。
The main purpose of this paper is to derive the capacity of attenuated or amplified noisy quantum channel assisted by two-mode squeezed states. In our previous works, formulas for capacity and reliability function have been obtained for continuous variable communication channel in the case where the classical information is conveyed by unentangled quantum Gaussian states. This paper investigates how two-mode squeezed states can enhance classical communication over quantum Gaussian channel.