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Paper detail

Conformally invariant proper time with general non-metricity

We show that the definition of proper time for Weyl-invariant space-times given by Perlick naturally extends to spaces with arbitrary non-metricity. We then discuss the relation between this generalized proper time and the Ehlers-Pirani-Schild definition of time when there is arbitrary non-metricity. Then we show how this generalized proper time suffers from a second clock effect. Assuming that muons are a device to measure this proper time, we constrain the non-metricity tensor on Earth's surface and then elaborate on the feasibility of such assumption.

preprint2020arXivOpen access
Adria DelhomIarley P. LoboGonzalo J. OlmoCarlos Romero
gr-qc
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Adria DelhomIarley P. LoboGonzalo J. OlmoCarlos Romero

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