Causality and gravity

Abstract We show how uncertainty in the causal structure of field theory is essentially inevitable when one includes quantum gravity. This includes the fact that lightcones are ill-defined in such a theory. This effect is small in the effective field theory regime, where it is independent of the UV...

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Bibliographic Details
Main Authors: John F. Donoghue, Gabriel Menezes
Format: Article
Language:English
Published: SpringerOpen 2021-11-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP11(2021)010