arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2001.00836cs.ITmath.ITquant-ph
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基于参数估计的量子信道通信

Communication over Quantum Channels with Parameter Estimation

Uzi Pereg

摘要:

考虑了在随机参数量子信道中,当需要解码器重构参数序列时的通信。我们研究的情况下,包括严格的因果关系,因果关系,或非因果信道侧信息(CSI)可在编码器,以及当CSI不可用。该模型可以被看作是量子计量学的一种形式,并且可以被看作是在解码器处具有状态估计的经典速率和状态信道的量子对应物。正则化公式的容量失真区域推导。在测量通道的特殊情况下,单字母的特征来自严格的因果关系和因果设置。此外,在更一般的情况下,纠缠打破渠道,一个单一的字母表征时,CSI是不可用的。因此,我们获得了具有CSI的随机参数量子信道容量的正则化公式,推广了Boche等人(2016)关于经典量子信道的先前结果。

英文摘要:

Communication over a random-parameter quantum channel when the decoder is required to reconstruct the parameter sequence is considered. We study scenarios that include either strictly-causal, causal, or non-causal channel side information (CSI) available at the encoder, and also when CSI is not available. This model can be viewed as a form of quantum metrology, and as the quantum counterpart of the classical rate-and-state channel with state estimation at the decoder. Regularized formulas for the capacity-distortion regions are derived. In the special case of measurement channels, single-letter characterizations are derived for the strictly causal and causal settings. Furthermore, in the more general case of entanglement-breaking channels, a single-letter characterization is derived when CSI is not available. As a consequence, we obtain regularized formulas for the capacity of random-parameter quantum channels with CSI, generalizing previous results by Boche et al. (2016) on classical-quantum channels.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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