A nongravitational wormhole
F. Baldovin, M. Novello, S. E. Perez Bergliaffa, J. M. Salim
Abstract
Using the effective metric formalism for photons in a nonlinear electromagnetic theory, we show that a certain field configuration in Born-Infeld electromagnetism in flat spacetime can be interpreted as an ultrastatic spherically symmetric wormhole. We also discuss some properties of the effective metric that are valid for any field configuration.
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