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Curvature coupling, electromagnetic wave propagation, and the consistency of the geometrical optics limit

Read, James and Linnemann, Niels (2021) Curvature coupling, electromagnetic wave propagation, and the consistency of the geometrical optics limit. [Preprint]

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Abstract

We study the propagation of Maxwellian electromagnetic waves in curved spacetimes in terms of the appropriate geometrical optics limit, notions of signal speed, and minimal coupling prescription from Maxwellian theory in flat spacetime. In the course of this, we counter a recent major claim by Asenjo and Hojman (2017) to the effect that the geometrical optics limit is partly ill-defined in Gödel spacetime; we thereby dissolve the present tension concerning established results on wave propagation and the optical limit.


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Item Type: Preprint
Creators:
CreatorsEmailORCID
Read, Jamesjames.read@philosophy.ox.ac.uk
Linnemann, Nielsnielslinnemann@aol.com0000-0002-3695-8611
Additional Information: Forthcoming in Classical and Quantum Gravity.
Keywords: General relativity; waves; geometrical optics; superluminal propagation; signal velocity
Subjects: Specific Sciences > Physics > Relativity Theory
Depositing User: Dr. James Read
Date Deposited: 03 Oct 2021 03:33
Last Modified: 03 Oct 2021 03:33
Item ID: 19636
Subjects: Specific Sciences > Physics > Relativity Theory
Date: 1 October 2021
URI: http://philsci-archive.pitt.edu/id/eprint/19636

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