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Title: Geometric optics for a coupling model of electromagnetic and gravitational fields

The coupling between the electromagnetic and gravitational fields results in “faster than light” photons, and then the first and third laws of geometric optics are invalid in usual spacetime. By introducing an effective spacetime, we find that the wave vector can be casted into null and then it obeys the geodesic equation, the polarization vector is perpendicular to the rays, and the number of photons is conserved. That is to say, the laws of geometric optics are valid for the modified theory in the effective spacetime. We also show that the focusing theorem of light rays for the modified theory in the effective spacetime can be cast into the usual form.
Authors:
; ;
Publication Date:
OSTI Identifier:
22560312
Resource Type:
Journal Article
Resource Relation:
Journal Name: Annals of Physics; Journal Volume: 367; Journal Issue: Complete; Other Information: Copyright (c) 2016 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COUPLING; ELECTROMAGNETIC FIELDS; GEODESICS; GEOMETRY; GRAVITATIONAL FIELDS; OPTICS; PHOTONS; POLARIZATION; SPACE-TIME; VECTORS; VISIBLE RADIATION