GT5 - Wormholes, Energy Conditions and Time Machines |
Speaker_ |
Berrocal Arellano, Aaron Vicente |
Co-autors |
Francisco S. N. Lobo |
Talk _ |
Dynamic wormhole spacetimes coupled to nonlinear electrodynamics |
Abstract _ |
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. |