arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1204.6579quant-phmath.OA
收藏

研究矩阵代数中正映射的新工具

New tools for investigating positive maps in matrix algebras

Justyna Pytel Zwolak, Dariusz Chruściński

摘要:

我们提供了一种新的工具,可用于构建新的例子,积极的映射矩阵代数(或等价地,纠缠证人)。事实证明,这可以用来证明几个著名的地图(如约简地图,广义约简,罗伯逊地图,和许多其他)的积极性。进一步,我们利用它构造了一类新的线性映射,并证明了它们是正的、不可分解的和(nd)最优的。

英文摘要:

We provide a novel tool which may be used to construct new examples of positive maps in matrix algebras (or, equivalently, entanglement witnesses). It turns out that this can be used to prove positivity of several well known maps (such as reduction map, generalized reduction, Robertson map, and many others). Furthermore, we use it to construct a new family of linear maps and prove that they are positive, indecomposable and (nd)optimal.

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。

↑