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arXiv 1707.00699quant-ph
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多体系统经典关联集的界定

Bounding the set of classical correlations of a many-body system

Matteo Fadel, Jordi Tura

摘要:

本文提出了一种方法来证明实验观测统计量中Bell相关的存在,并得到了新的贝尔不等式.我们的方法是基于放松的条件定义的一组相关性服从局部隐变量模型,产生一个收敛的层次结构的半定程序(SdP的)。由于这些SdP的大小是独立的参与方的数量,这种技术允许在多体系统中的相关性的特征。作为一个例子,我们用[Science 352,441(2016)]中给出的实验数据说明了我们的方法。

英文摘要:

We present a method to certify the presence of Bell correlations in experimentally observed statistics, and to obtain new Bell inequalities. Our approach is based on relaxing the conditions defining the set of correlations obeying a local hidden variable model, yielding a convergent hierarchy of semidefinite programs (SdP's). Because the size of these SdP's is independent of the number of parties involved, this technique allows to characterize correlations in many-body systems. As an example, we illustrate our method with the experimental data presented in [Science 352, 441 (2016)]

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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