“Non-locality is most naturally incorporated into a theory in which there is a special frame of reference. One possible candidate for this special frame of reference is the one in which the Cosmic Microwave Background (CMB) is isotropic. However, other than the fact that a realistic interpretation of quantum mechanics requires a preferred frame and the CMB provides us with one, there is no readily apparent reason why the two should be linked” (L. Hardy). Starting from this remark, we first argue that, given the present view of the vacuum, the basic tenets of Quantum Field Theory cannot guarantee that Einstein Special Relativity, with no preferred frame, is the physically realized version of relativity. Then, to try to understand the nature of the hypothetical preferred $\Sigma -$frame, we consider the so-called ether drift experiments, those precise optical measurements that try to detect, in the laboratory, a small angular dependence of the two-way velocity of light and then to correlate this angular dependence with the direct CMB observations with satellites in space. By considering all experiments performed so far, from Michelson–Morley to the present experiments with optical resonators, and analyzing the small observed residuals in a modern theoretical framework, the long-sought $\Sigma -$ frame tight to the CMB naturally emerges. Finally, if quantum non-locality reflects some effect propagating at vastly superluminal speed $v_{QI}\to \infty$, its ultimate origin could be hidden somewhere in the infinite speed $c_s\to \infty$ of vacuum density fluctuations.

中文翻译：

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量子非局域性和 CMB：实验说明了什么

“非局部性最自然地被纳入一个有特殊参照系的理论中。这种特殊参考系的一个可能候选者是宇宙微波背景（CMB）是各向同性的。然而，除了对量子力学的现实解释需要一个首选框架并且 CMB 为我们提供了一个这一事实之外，没有显而易见的理由将两者联系起来”（L. Hardy）。从这句话开始，我们首先认为，鉴于目前的真空观，量子场论的基本原理不能保证没有首选框架的爱因斯坦狭义相对论是相对论的物理实现版本。然后，尝试理解假设偏好的性质$\Sigma -$框架，我们考虑所谓的以太漂移实验，那些试图在实验室中检测双向光速的小角度相关性的精确光学测量，然后将这种角度相关性与直接 CMB 观测相关联太空中的卫星。通过考虑迄今为止进行的所有实验，从 Michelson-Morley 到目前的光学谐振器实验，并在现代理论框架中分析观察到的小残差，长期寻求的$\Sigma -$框架紧到中巴自然就出现了。最后，如果量子非定域性反映了某种以超光速传播的效应$v_{问我}\to \infty$，它的最终起源可能隐藏在无限速度的某个地方$C_s\to \infty$真空密度波动。