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Phys. Rev. D 69, 087501 (2004) [4 pages]

Gravitational Faraday rotation in a weak gravitational field

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Mauro Sereno*
Dipartimento di Scienze Fisiche, Università degli Studi di Napoli “Federico II,” Via Cinthia, Compl. Univ. Monte S. Angelo, 80126 Napoli, Italy
Istituto Nazionale di Fisica Nucleare, Sez. Napoli, via Cinthia, Compl. Univ. Monte S. Angelo, 80126 Napoli, Italy

Received 23 June 2003; revised 10 December 2003; published 8 April 2004

We examine the rotation of the plane of polarization for linearly polarized light rays by the weak gravitational field of an isolated physical system. Based on the rotation of inertial frames, we review the general integral expression for the net rotation. We apply this formula, an analogue to the usual electromagnetic Faraday effect, to some interesting astrophysical systems, namely uniformly shifting mass monopoles and a spinning external shell.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.69.087501
DOI:
10.1103/PhysRevD.69.087501
PACS:
04.20.Cv, 04.25.Nx, 04.70.Bw, 95.30.Sf

*Also at Osservatorio Astronomico di Capodimonte–INAF, Salita Moiariello, 16, 80131 Napoli, Italy; Electronic address: sereno@na.infn.it