Non-singular Brane cosmology with a Kalb-Ramond field

TL;DR

This paper introduces a non-singular brane cosmology model embedded in a warped 5D space with a Kalb-Ramond field, leading to a bouncing universe scenario that avoids previous instabilities.

Contribution

It presents a novel 5D brane model with charged black hole solutions and demonstrates a stable bouncing cosmology induced by negative dark radiation.

Findings

Existence of static charged dS/AdS-like black hole solutions with negative mass.

A bouncing 4D cosmology generated by brane motion in the bulk.

Avoidance of instabilities present in earlier non-singular braneworld models.

Abstract

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-Nordstr{\o}m-AdS bulk.}