Nonlocality is a property observed in quantum entangled systems and is largely regarded as having no classical explanation. Nonlocal correlations and phenomena describe the state in which entangled systems appear to be connected regardless of spatial or temporal separation, even beyond what is normally confined by the speed of light and causal order.
It seems this would mandate that there is some sort of faster-than-light connection between quantum entangled systems or that objects do not really exist unless they are somehow observed. Interestingly, most physicist choose the latter explanation, since it is erroneously believed that superluminal correlations would violate the principle of relativity of simultaneity of Einstein’s well known theory — seeming to dismiss or neglect that the general theory of relativity permits extended and connected spacetime geometries that would have apparent superluminal connections.
Since such nonlocal correlations are vital to understanding the core nature of reality and a unified physics, it is important to be able to study them experimentally. Normally, this has been limited to single pairs of quantum systems, like entangled photons. However, recently there has been reported another experimental methodology by which many-body quantum systems can be entangled to study the nonlocal correlations of large ensembles of atoms.
Another team has described how to show nonlocal correlations of many-body quantum systems by analyzing the state of minimal energy (vacuum state). This provides a relatively approachable means to studying nonlocal correlations, something that is normally highly complicated the larger the system that is tested.
Article: https://phys.org/news/2017-04-natural-nonlocal.html#nRlv
Article: https://phys.org/news/2017-04-bell-million-atoms.html
