arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1004.4787quant-ph
收藏

单模高斯信道的广义最小输出熵猜想:定义和一些精确结果

Generalized minimal output entropy conjecture for one-mode Gaussian channels: definitions and some exact results

V. Giovannetti, A. S. Holevo, S. Lloyd, L. Maccone

摘要:

给出了高斯信道下广义最小输出熵猜想的一个公式。它断言,对于具有固定输入熵的状态,信道的输出熵的最小值(即,对于固定输入熵的最小输出熵增量)由高斯状态实现。在中心通道的情况下(即,通道不增加压缩的输入状态),这意味着最小值是通过热(吉布斯)输入获得的。证明了该猜想在某些特殊情况下是成立的。

英文摘要:

A formulation of the generalized minimal output entropy conjecture for Gaussian channels is presented. It asserts that, for states with fixed input entropy, the minimal value of the output entropy of the channel (i.e. the minimal output entropy increment for fixed input entropy) is achieved by Gaussian states. In the case of centered channels (i.e. channels which do not add squeezing to the input state) this implies that the minimum is obtained by thermal (Gibbs) inputs. The conjecture is proved to be valid in some special cases.

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。

↑