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arXiv quant-ph/0607119quant-ph
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量子关联集的边界

Bounding the set of quantum correlations

Miguel Navascues, Stefano Pironio, Antonio Acin

摘要:

我们引入了一个层次的条件必须满足的任何分布P(ab)表示的概率为两个独立的观察者获得结果a和b时,在一个共享的量子态的本地测量。在这个层次中的每个条件制定为一个半定的计划。我们的方法可以用来获得任意贝尔不等式量子破坏的上界。例如,它产生了对Collins等人不等式的违反的紧界。

英文摘要:

We introduce a hierarchy of conditions necessarily satisfied by any distribution P(ab) representing the probabilities for two separate observers to obtain outcomes a and b when making local measurements on a shared quantum state. Each condition in this hierarchy is formulated as a semidefinite program. Our approach can be used to obtain upper-bounds on the quantum violation of an arbitrary Bell inequality. It yields, for instance, tight bounds for the violations of the Collins et al. inequalities.

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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