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arXiv · hep-th/0111099

Non-Abelian Born--Infeld cosmology

V. V. Dyadichev·D. V. Gal'tsov·A. G. Zorin·M. Yu. Zotov
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Abstract

We investigate homogeneous and isotropic cosmological solutions supported by the SU(2) gauge field governed by the Born-Infeld lagrangian. In the framework of the Friedmann-Robertson-Walker cosmology, with or without cosmological constant $λ$, we derive dynamical systems that give rather complete description of the space of solutions. For $λ=0$ the effective equation of state $\ve(p)$ is shown to interpolate between $p=-\ve/3$ in the regime of the strong field and $p=\ve/3$ for the weak field. Correspondingly, the Universe starts with zero acceleration and gradually enters the decelerating regime, asymptotically approaching the Tolman solution.

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V. V. Dyadichev, D. V. Gal'tsov, A. G. Zorin, M. Yu. Zotov. 2001-11-12. Non-Abelian Born--Infeld cosmology. https://doi.org/10.1103/physrevd.65.084007

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