Faster than light' photons and charged black holes

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dc.creatorDaniels, R. D.
dc.creatorShore, G. M.
dc.date1993-10-19
dc.date1993-10-25
dc.date.accessioned2026-07-07T12:03:46Z
dc.date.available2026-07-07T12:03:46Z
dc.descriptionPhotons propagating in curved spacetime may, depending on their direction and polarisation, have velocities exceeding the ``speed of light'' c. This phenomenon arises through vacuum polarisation in QED and is a tidal gravitational effect depending on the local curvature. It implies that the Principle of Equivalence does not hold for interacting quantum field theories in curved spacetime and reflects a quantum violation of local Lorentz invariance. These results are illustrated for the propagation of photons in the Reissner-Nordström spacetime characterising a charged black hole. A general analysis of electromagnetic as well as gravitational birefringence is presented.
dc.description17pages, SWAT 93-9, UGVA-DPT 1993/08-830 (includes three macros undefined in originally submitted version)
dc.identifierhttps://arxiv.org/abs/hep-th/9310114
dc.identifierhttp://arxiv.org/abs/hep-th/9310114
dc.identifierNucl.Phys.B425:634-650,1994
dc.identifierdoi:10.1016/0550-3213(94)90291-7
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/207901
dc.subjectHigh Energy Physics - Theory
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleFaster than light' photons and charged black holes
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