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Author |
Asenjo, F.A.; Hojman, S.A. |
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Title |
Do electromagnetic waves always propagate along null geodesics? |
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Year |
2017 |
Publication |
Classical And Quantum Gravity |
Abbreviated Journal |
Class. Quantum Gravity |
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Volume |
34 |
Issue |
20 |
Pages |
12 pp |
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Keywords |
electromagnetic waves; curved spacetime; non-null geodesics |
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Abstract |
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. |
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Address |
[Asenjo, Felipe A.] Univ Adolfo Ibanez, Fac Ingn & Ciencias, Santiago, Chile, Email: felipe.asenjo@uai.cl; |
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Publisher |
Iop Publishing Ltd |
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Language |
English |
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ISSN |
0264-9381 |
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Notes |
WOS:000411741800008 |
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Call Number |
UAI @ eduardo.moreno @ |
Serial |
800 |
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