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No-broadcasting of non-signalling boxes via operations which transform local boxes into local ones

机译:通过将本地信箱转换为本地信箱的操作来不广播非信令信箱

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摘要

We deal with families of probability distributions satisfying non-signalling condition, called non-signalling boxes and consider a class of operations that transform local boxes into local ones (the one that admit LHV model). We prove that any operation from this class cannot broadcast a bipartite non-local box with 2 binary inputs and outputs. We consider a function called anti-Robustness which can not decrease under these operations. The proof reduces to showing that anti-Robustness would decrease after broadcasting.
机译:我们处理满足非信令条件的概率分布族,称为非信令框,并考虑一类将本地框转换为本地框的操作(允许LHV模型的操作)。我们证明该类的任何操作都不能广播具有2个二进制输入和输出的两部分非本地框。我们考虑了一种称为“抗结实性”的功能,该功能在这些操作下不会降低。证据简化为表明广播后反强壮性会降低。

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