Nonlinear electrodynamics in Bianchi spacetimes

Details Nonlinear electrodynamics in Bianchi spacetimes Nonlinear electrodynamics in Bianchi spacetimes

2002-12-11

arxiv.org/abs/hep-th/0212130v2

Class.Quant.Grav. 20 (2003) 5425-5437

Physics

High Energy Physics

High Energy Physics - Theory

8 pages, 6 figures

Scientific paper

10.1088/0264-9381/20/24/014

We study the effects produced by nonlinear electrodynamics in spacetimes conformal to Bianchi metrics. In the presence of Born-Infeld type fields these models accelerate, expand and isotropize. This effect is compared with the corresponding to a linear electromagnetic field; it turns out that for the same geometry, Maxwell fields does not favour inflation as much as Born-Infeld field. The behavior of the nonlinear radiation is analyzed in terms of the equation of state. The energy conditions are analyzed as well, showing that the Born-Infeld field violates the strong energy condition.

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