Cosmology with Radion and Bulk Scalar Field in Two Branes Model

  title={Cosmology with Radion and Bulk Scalar Field in Two Branes Model},
  author={S. Kobayashi and K. Koyama},
  journal={Journal of High Energy Physics},
  • S. Kobayashi, K. Koyama
  • Published 2002
  • Physics
  • Journal of High Energy Physics
  • We investigate cosmological evolutions of the bulk scalar field (t) and the radion d(t) in five-dimensional dilatonic two branes model. The bulk potential for the scalar field is taken as the exponential function Vbulk∝exp (−2(2)1/2b), where b is the parameter of the theory. This model includes Randall-Sundrum model (with b = 0) and five-dimensional Horava-Witten theory (with b = 1). We consider matter on both branes and arbitrary potentials on the branes and in the bulk. These matter and… CONTINUE READING


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