Non-singular Brane cosmology with a Kalb-Ramond field
Abstract
Description
We present a model in which a 3-brane is embedded in a warped 5-dimensional background with a dilaton and a Kalb-Ramond 2-form. We show that it is possible to find static solutions of the form of charged dS/AdS-like black hole which could have a negative mass parameter. The motion of the 3-brane in this bulk generates an effective 4-dimensional bouncing cosmology induced by the negative dark radiation term. This model avoids the instabilities that arises for previous non-singular braneworld cosmologies in a Reissner-Nordstrøm-AdS bulk.}
Talk given at the "43rd Rencontres de Moriond", La Thuile (Val d'Aosta, Italy), March 15 - 22, 2008
Talk given at the "43rd Rencontres de Moriond", La Thuile (Val d'Aosta, Italy), March 15 - 22, 2008