Nonlinear electrodynamics and FRW cosmology
V. A. De Lorenci, R. Klippert, M. Novello, J. M. Salim
Abstract
Maxwell electrodynamics, considered as a source of the classical Einstein field equations, leads to the singular isotropic Friedmann solutions. We show that this singular behavior does not occur for a class of nonlinear generalizations of the electromagnetic theory. A mathematical toy model is proposed for which the analytical nonsingular extension of FRW solutions is obtained.
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