Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2006-07-31
Class.Quant.Grav. 23 (2006) 5811-5824
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
17 pages, 1 figure; to appear in Classical and Quantum Gravity. V2: minor corrections, including a reference
Scientific paper
10.1088/0264-9381/23/20/004
In this work, we explore the possibility of evolving (2+1) and (3+1)-dimensional wormhole spacetimes, conformally related to the respective static geometries, within the context of nonlinear electrodynamics. For the (3+1)-dimensional spacetime, it is found that the Einstein field equation imposes a contracting wormhole solution and the obedience of the weak energy condition. Nevertheless, 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. For the (2+1)-dimensional case, it is also found that the physical fields are singular at the throat. Thus, taking into account the principle of finiteness, which states that a satisfactory theory should avoid physical quantities becoming infinite, one may rule out evolving (3+1)-dimensional wormhole solutions, in the presence of an electric field, and the (2+1)-dimensional case coupled to nonlinear electrodynamics.
Arellano Aaron V. B.
Lobo Francisco S. N.
No associations
LandOfFree
Evolving wormhole geometries within nonlinear electrodynamics does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Evolving wormhole geometries within nonlinear electrodynamics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evolving wormhole geometries within nonlinear electrodynamics will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-644445