Rotation Effects and The Gravito-Magnetic Approach

Details Rotation Effects and The Gravito-Magnetic Approach Rotation Effects and The Gravito-Magnetic Approach

2004-10-08

arxiv.org/abs/gr-qc/0410039v2

AIP Conf.Proc.751:251-254,2005

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

3 pages, LaTeX, 1 EPS figure; to appear in the Proceedings for the ``XVI SIGRAV Conference'' in Vietri sul Mare (SA) 13-16 Sep

Scientific paper

10.1063/1.1891567

Gravito-electromagnetism is somewhat ubiquitous in relativity. In fact, there are many situations where the effects of gravitation can be described by formally introducing "gravito-electric" and "gravito-magnetic" fields, starting from the corresponding potentials, in analogy with the electromagnetic theory (see also A. Tartaglia's contribution to these proceedings). The "many faces of gravito-electromagnetism" are related to rotation effects in both approximated and full theory approaches. Here we show that, by using a 1+3 splitting, relativistic dynamics can be described in terms of gravito-electromagnetic (GEM) fields in full theory. On the basis of this formalism, we introduce a "gravito-magnetic Aharonov-Bohm effect", which allows to interpret some rotation effects as gravito-magnetic effects. Finally, we suggest a way for measuring the angular momentum of celestial bodies by studying the gravito-magnetic effects on the propagation of electromagnetic signals.

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