Non-Abelian brane cosmology

  title={Non-Abelian brane cosmology},
  author={Dmitry V. Gal'tsov and Vladimir V. Dyadichev},
  journal={Astrophysics and Space Science},
We discuss isotropic and homogeneous D-brane-world cosmology with non-Abelian Born-Infeld (NBI) matter on the brane. In the usual Friedmann-Robertson-Walker (FRW) model the scale non-invariant NBI matter gives rise to an equation of state which asymptotes to the string gas equation p=-ε/3 and ensures a start-up of the cosmological expansion with zero acceleration. We show that the same state equation in the brane-world setup leads to the Tolman type evolution as if the conformal symmetry was… CONTINUE READING