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arXiv 1805.04583quant-phmath.OA
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纠缠破缺秩与SIC POVM的存在性

Entanglement Breaking Rank and the existence of SIC POVMs

Satish K. Pandey, Vern I. Paulsen, Jitendra Prakash, Mizanur Rahaman

摘要:

引入并研究了纠缠破缺通道的纠缠破缺秩。我们证明了由\begin{align*} \mathfrak Z(X) = \frac{1}{d+1}(X+\text{Tr}(X)\mathbb I_d) \end{align*}定义的$\mathfrak Z: M_d \to M_d$的纠缠破缺秩为$d^2$当且仅当在$d$维上存在对称的信息完备POVM.

英文摘要:

We introduce and study the entanglement breaking rank of an entanglement breaking channel. We show that the entanglement breaking rank of the channel $\mathfrak Z: M_d \to M_d$ defined by \begin{align*} \mathfrak Z(X) = \frac{1}{d+1}(X+\text{Tr}(X)\mathbb I_d) \end{align*} is $d^2$ if and only if there exists a symmetric informationally-complete POVM in dimension $d$.

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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