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arXiv 0802.3632quant-ph
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量子关联几何

Geometry of quantum correlations

Itamar Pitowsky

摘要:

考虑两个观察者的量子相关向量的集合Q,每个观察者具有两个可能的二进制测量。证明了Q中的每个向量都满足二次(双曲)不等式,并且在由局部盒和所有最大地违反Clauser,Horne,Shimony,and Holt(CHSH)不等式的量子关联向量组成的二维流形上,等式成立.二次不等式与CHSH紧密相关,它们是它们的迭代版本(等式20)。因此,它被证明是包含在一个双曲立方体,其轴位于沿非局部(Popescu,Rohrlich)盒。作为一个应用,一个严格的限制率的本地盒,必须存在于每个量子关联。不等式允许测试的有效性的量子力学的基础上,从实验中测试违反CHSH的数据。值得注意的是,这些结果可以推广到n个站点的情况下,每个站点有两个可能的二进制测量。

英文摘要:

Consider the set Q of quantum correlation vectors for two observers, each with two possible binary measurements. Quadric (hyperbolic) inequalities which are satisfied by every vector in Q are proved, and equality holds on a two dimensional manifold consisting of the local boxes, and all the quantum correlation vectors that maximally violate the Clauser, Horne, Shimony, and Holt (CHSH) inequality. The quadric inequalities are tightly related to CHSH, they are their iterated versions (equation 20). Consequently, it is proved that Q is contained in a hyperbolic cube whose axes lie along the non-local (Popescu, Rohrlich) boxes. As an application, a tight constraint on the rate of local boxes that must be present in every quantum correlation is derived. The inequalities allow testing the validity of quantum mechanics on the basis of data available from experiments which test the violation of CHSH. It is noted how these results can be generalized to the case of n sites, each with two possible binary measurements.

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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