分布式量子系统中的信息资源
Information as a resource in distributed quantum systems
摘要：
一个新的范例分布式量子系统中的信息是一种宝贵的资源。在找到一个唯一的信息度量之后，我们构造了一个类似于纠缠理论的操纵方案。在这个方案中，两方提取局域态，而不是最大纠缠态。我们发现，令人惊讶的是，纠缠理论的主要工具是足够普遍的工作在这个相反的计划。在合理的假设下，我们证明了在局部信息集中的协议中必须丢失的信息量可以表示为与某些特殊状态集的相对熵距离。
英文摘要：
A new paradigm for distributed quantum systems where information is a valuable resource is developed. After finding a unique measure for information, we construct a scheme for it's manipulation in analogy with entanglement theory. In this scheme instead of maximally entangled states, two parties distill local states. We show that, surprisingly, the main tools of entanglement theory are general enough to work in this opposite scheme. Up to plausible assumptions, we show that the amount of information that must be lost during the protocol of concentration of local information can be expressed as the relative entropy distance from some special set of states.
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