Bell’s theorem for temporal order

Time has a fundamentally different character in quantum mechanics and in general relativity. Here, the authors consider a thought experiment where a massive body in a spatial superposition leads to entanglement of temporal orders between time-like events, resulting in a violation of a Bell-type ineq...

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Bibliographic Details
Main Authors: Magdalena Zych, Fabio Costa, Igor Pikovski, Časlav Brukner
Format: Article
Language:English
Published: Nature Publishing Group 2019-08-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-019-11579-x