Non-linear electrodynamics and the acceleration of the universe
M. Novello, S. E. Perez Bergliaffa, J. Salim
Abstract
It is shown that the addition of a non-linear term to the Lagrangian of the electromagnetic field yields a fluid with an asymptotically super-negative equation of state, causing an accelerated expansion of the universe. Some general properties of nonlinear electromagnetism in cosmology are also discussed.
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