Eddington-Born-Infeld action for dark energy and dark matter

Abstract

We argue that Einstein gravity coupled to a Born-Infeld theory provides an attractive candidate to represent dark matter and dark energy. For cosmological models, the Born-Infeld field has an equation of state which interpolates between matter, w=0 (small times), and a cosmological constant w=-1 (large times). On galactic scales, the Born-Infeld field predicts asymptotically flat rotation curves.

A sign mistake in section on galactic scales is pointed out. This sign invalidates the content of that section. See comment on manuscript

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