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arXiv quant-ph/0406162quant-ph
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关于冯诺伊曼熵的一个新不等式

A new inequality for the von Neumann entropy

Noah Linden, Andreas Winter

摘要:

冯诺伊曼熵的强次可加性是量子编码理论的基石,由Lieb和Ruskai在1973年证明。本文证明了一个新的与强次可加性无关的冯诺伊曼熵不等式:它对任何四方量子态都成立,只要它对某些约化态的熵满足三个线性关系(约束)。

英文摘要:

Strong subadditivity of von Neumann entropy, proved in 1973 by Lieb and Ruskai, is a cornerstone of quantum coding theory. All other known inequalities for entropies of quantum systems may be derived from it. Here we prove a new inequality for the von Neumann entropy which we prove is independent of strong subadditivity: it is an inequality which is true for any four party quantum state, provided that it satisfies three linear relations (constraints) on the entropies of certain reduced states.

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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