Superactivation of Measurement-Induced Nonlocality
Superactivation of Measurement-Induced Nonlocality
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DOI：
10.1088/0253-6102/62/6/06
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发表时间：
2014-12
影响因子：
3.1
通讯作者：
Chang Li-na;Luo Shun-Long
中科院分区：
文献类型：
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作者：
Chang Li-na;Luo Shun-Long
Nonlocality, as an essential, subtle and intriguing aspect of nature, has many different facets and manifestations. In quantum information theory, nonlocality is usually defined, characterized and quantified in the framework of entanglement and violation of certain Bell inequalities. An exciting phenomenon concerning entanglement-related nonlocality is the superactivation, symbolized as "0 + 0 > 0", which means that two systems, while do not possess nonlocality individually by themselves, may exhibit nonlocality when combined together in an independent fashion. In this work, we explore nonlocality from the measurement perspective and reveal the superactivation of measurement-induced nonlocality (MIN): When two bipartite states with vanishing MIN are combined together, the tensorizing state may possess non-zero MIN. Implications and applications are discussed.
