Quantum Locality of N Entangled States
Quantum Locality of N Entangled States
复制标题
N 纠缠态的量子局域性
DOI:
10.1007/s10773-020-04484-3
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发表时间:
2020-06
影响因子:
1.4
通讯作者:
Wang QingLe
中科院分区:
文献类型:
--
作者:
Zhou YuQian;Zhang ZhiYi;Li Dan;Wang QingLe
The nonlocality research of quantum entanglement plays an important role in the development of quantum mechanics theory and quantum information technology. As multipartite entangled state is a rare quantum resource, its nonlocality research has always been an important subject in the study of quantum theory. In this paper, we focus on N entangled states composed of N copies of an entangled state. First, a new Bell test with respect to N entangled states is presented, and lifting Bell inequalities are applied to certify nonlocality. Second, we obtain the nonlocality certification standard of N entangled states by parity binning lifting Bell inequality. Third, we prove the conjecture that N + 2 entangled states must be local if N entangled states are local certified by parity binning lifting Bell inequality. The research will promote the theoretical research progress of quantum coherence, and provide theoretical basis and technical support for the multipartite entangled states application in quantum cryptographic protocols.
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DOI:
10.1098/rspa.2009.0453
发表时间:
2010-03-08
影响因子:
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