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arXiv quant-ph/0506225quant-ph
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最佳贝尔测试不需要最大纠缠态

Optimal Bell tests do not require maximally entangled states

Antonio Acin, Richard Gill, Nicolas Gisin

摘要:

任何贝尔测试都是由对类空间分离区域中的量子态的一系列测量组成的。因此,对于贝尔检验,当对于最佳测量和相同数量的试验,所观察到的结果的局部模型存在的概率较小时,一个状态比其他状态更好。状态和测量的最大化定义了最优非局部性证明。数值结果表明,所需的最佳状态并不一定是最大纠缠。

英文摘要:

Any Bell test consists of a sequence of measurements on a quantum state in space-like separated regions. Thus, a state is better than others for a Bell test when, for the optimal measurements and the same number of trials, the probability of existence of a local model for the observed outcomes is smaller. The maximization over states and measurements defines the optimal nonlocality proof. Numerical results show that the required optimal state does not have to be maximally entangled.

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。

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