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arXiv 1111.2593quant-ph
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局域量子力学和超量子关联意味着超光速信号

Local quantum mechanics and superquantum correlations imply superluminal signaling

S. Aravinda, R. Srikanth

摘要:

已经表明,局部量子测量和无信号意味着量子相关性(Barnum等人,Phys.Rev.Lett.,104,140401(2010))。如果我们承认局域量子力学的有效性,这就意味着超量子关联将是超光信号。我们提出了一个具体的,简单的例子,这种情况。我们的结果也有这样的解释,即在广义非信号理论(GNST)中用一个允许局部酉的动力学来替换局部(平凡)动力学,会导致概率分布可能是正的和归一化保持的,但违反了无信号,因此在形式主义中是不一致的。

英文摘要:

It has been shown that local quantum measurements and no-signaling imply quantum correlations (Barnum et al. Phys. Rev. Lett., 104, 140401 (2010)). This entails that superquantum correlations will be superluminaly signaling if we admit the validity of local quantum mechanics. We present a specific, simple instance of this situation. Our result also has the interpretation that replacing the local (trivial) dynamics in a generalized non-signaling theory (GNST) by one that admits local unitaries, results in a probability distribution that may be positive and normalization-preserving but violates no-signaling, and is thus inconsistent within the formalism.

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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