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GR as a classical spin-2 theory?

Published online by Cambridge University Press:  29 March 2023

Niels Linnemann*
Affiliation:
University of Geneva
Chris Smeenk
Affiliation:
Rotman Institute of Philosophy/Western University
Mark Robert Baker
Affiliation:
Rose-Hulman Institute of Technology
*
Corresponding author: Niels Linnemann; Email: niels.linnemann@unige.ch

Abstract

The self-interaction spin-2 approach to general relativity (GR) has been extremely influential in the particle physics community. Leaving no doubt regarding its heuristic value, we argue that a view of the metric field of GR as nothing but a stand-in for a self-coupling field in flat spacetime runs into a dilemma: either the view is physically incomplete in so far as it requires recourse to GR after all, or it leads to an absurd multiplication of alternative viewpoints on GR rendering any understanding of the metric field as nothing but a spin-2 field in flat spacetime unjustified.

Type
Contributed Paper
Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of the Philosophy of Science Association

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