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arXiv · 2210.00133

Equivalence Principle in Classical and Quantum Gravity

Nikola Paunkovic·Marko Vojinovic
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Abstract

We give a general overview of various flavors of the equivalence principle in classical and quantum physics, with special emphasis on the so-called weak equivalence principle, and contrast its validity in mechanics versus field theory. We also discuss its generalisation to a theory of quantum gravity. Our analysis suggests that only the strong equivalence principle can be considered fundamental enough to be generalised to a quantum gravity context, since all other flavors of equivalence principle hold only approximately already at the classical level.

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Nikola Paunkovic, Marko Vojinovic. 2022-09-30. Equivalence Principle in Classical and Quantum Gravity. https://doi.org/10.3390/universe8110598

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