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linkedin post 2022-03-15 04:44:17

THE NUT. “Note that the concept fits within flat space-time. That an observer comparing one region with a reference frame based on the vacuum configuration might see non-trivial geometry is in agreement with diffeomorphism invariance.” (“relative geometry constitutes a first deviation from the properties of a standard space-time scenario.”)

https://link.springer.com/content/pdf/10.1007/JHEP07(2019)140.pdf

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