Do electromagnetic waves always propagate along null geodesics?
Asenjo
F
A
author
Hojman
S
A
author
2017
English
We find exact solutions to Maxwell equations written in terms of fourvector potentials in non-rotating, as well as in Gdel and Kerr spacetimes. We show that Maxwell equations can be reduced to two uncoupled secondorder differential equations for combinations of the components of the four-vector potential. Exact electromagnetic waves solutions are written on given gravitational field backgrounds where they evolve. We find that in non-rotating spherical symmetric spacetimes, electromagnetic waves travel along null geodesics. However, electromagnetic waves on Gdel and Kerr spacetimes do not exhibit that behavior.
electromagnetic waves
curved spacetime
non-null geodesics
WOS:000411741800008
exported from refbase (show.php?record=800), last updated on Sun, 25 Mar 2018 13:54:12 -0300
text
files/800_Asenjo+Hojman2017.pdf
10.1088/1361-6382/aa8b48
Asenjo+Hojman2017
Classical And Quantum Gravity
Class. Quantum Gravity
2017
Iop Publishing Ltd
continuing
periodical
academic journal
34
20
12 pp
0264-9381