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arXiv 0803.1056math-phmath.MP
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量子斜信息的不等式

Inequalities for quantum skew information

Koenraad Audenaert, Liang Cai, Frank Hansen

摘要:

研究了量子信息不等式,证明了量子方差与度量调整偏斜信息之间的基本不等式生成了许多作者研究的所有多算子矩阵不等式或Robertson型行列式不等式.我们引入一个顺序关系的一组功能表示量子费舍尔信息,使一组成一个格的对合。这种顺序结构产生新的不等式的度量调整偏斜信息。特别地,Wigner-Yanase偏斜信息是Wigner-Yanase-Dyson偏斜信息集合中关于该阶结构的最大偏斜信息。关键词和短语:量子协方差,度规调整斜信息,Robertson型不确定原理,算子单调函数,Wigner-Yanase-Dyson斜信息。

英文摘要:

We study quantum information inequalities and show that the basic inequality between the quantum variance and the metric adjusted skew information generates all the multi-operator matrix inequalities or Robertson type determinant inequalities studied by a number of authors. We introduce an order relation on the set of functions representing quantum Fisher information that renders the set into a lattice with an involution. This order structure generates new inequalities for the metric adjusted skew informations. In particular, the Wigner-Yanase skew information is the maximal skew information with respect to this order structure in the set of Wigner-Yanase-Dyson skew informations. Key words and phrases: Quantum covariance, metric adjusted skew information, Robertson-type uncertainty principle, operator monotone function, Wigner-Yanase-Dyson skew information.

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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