Eddington-Born-Infeld action for dark energy and dark matter
Maximo Banados
TL;DR
This paper proposes that Einstein gravity coupled with a Born-Infeld field can simultaneously explain dark matter and dark energy, matching cosmological and galactic observations.
Contribution
It introduces a unified model using Born-Infeld theory that interpolates between matter and dark energy behaviors in cosmology and predicts flat galactic rotation curves.
Findings
Born-Infeld field acts as dark matter and dark energy in cosmology.
The model reproduces flat galactic rotation curves.
Equation of state transitions from matter-like to cosmological constant-like.
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.
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