关于可分性和可分性的思考
Reflections upon separability and distillability
摘要：
我们提出了一个抽象的制定所谓的因斯布鲁克-汉诺威计划，研究量子关联和纠缠的凸集。给出了量子态最优分解的统一描述，以及检测给定态是否属于给定凸集的见证算子的优化。我们用几个例子说明了抽象的公式，并讨论了最佳纠缠证人和非正部分转置的n-副本不可复制态之间的关系。
英文摘要：
We present an abstract formulation of the so-called Innsbruck-Hannover programme that investigates quantum correlations and entanglement in terms of convex sets. We present a unified description of optimal decompositions of quantum states and the optimization of witness operators that detect whether a given state belongs to a given convex set. We illustrate the abstract formulation with several examples, and discuss relations between optimal entanglement witnesses and n-copy non-distillable states with non-positive partial transpose.
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