Nonlinear electrodynamics and the acceleration of the Universe
M. NovelloCentro Brasileiro de Pesquisas Fisicas, Rua Xavier Sigaud, 150, CEP 22290-180, Rio de Janeiro, BrazilSantiago Esteban Perez BergliaffaCentro Brasileiro de Pesquisas Fisicas, Rua Xavier Sigaud, 150, CEP 22290-180, Rio de Janeiro, BrazilJ. M. SalimCentro Brasileiro de Pesquisas Fisicas, Rua Xavier Sigaud, 150, CEP 22290-180, Rio de Janeiro, Brazil
2004en
ABI
Abstract
It is shown that the addition of a nonlinear 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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Cited by 30 references