Equivalence Principle in Classical and Quantum Gravity

• URL: http://arxiv.org/abs/2210.00133v2
• Date: Sun, 13 Nov 2022 02:14:20 GMT
• Title: Equivalence Principle in Classical and Quantum Gravity
• Authors: Nikola Paunkovic and Marko Vojinovic
• Abstract summary: We give an overview of various flavors of the equivalence principle in classical and quantum physics. Our analysis suggests that only the strong equivalence principle can be considered fundamental enough to be generalised to a quantum gravity context.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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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