Dynamic wormhole spacetimes coupled to nonlinear electrodynamics

Details Dynamic wormhole spacetimes coupled to nonlinear electrodynamics Dynamic wormhole spacetimes coupled to nonlinear electrodynamics

2006-12-13

arxiv.org/abs/gr-qc/0612083v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

3 pages, contribution to the proceedings of MG11, Berlin, 23-29 July, 2006

Scientific paper

We explore the possibility of dynamic wormhole geometries, within the context of nonlinear electrodynamics. The Einstein field equation imposes a contracting wormhole solution and the obedience of the weak energy condition. Furthermore, in the presence of an electric field, the latter presents a singularity at the throat, however, for a pure magnetic field the solution is regular. Thus, taking into account the principle of finiteness, that a satisfactory theory should avoid physical quantities becoming infinite, one may rule out evolving wormhole solutions, in the presence of an electric field, coupled to nonlinear electrodynamics.

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