Wormholes in Randall-Sundrum braneworld

Abstract

Braneworld models were firstly proposed as a great alternative for the hierarcy problem of particle physics, by allowing gravitons, differently from the other interacting bosons, to propagate through an extradimensional space named bulk. As time passed by the braneworld setup has also shown to be able to provide interesting results when applied to cosmology and stellar and gravitational wave astrophysics scenarios. In the present work we will construct Randall-Sundrum II braneworld wormholes whose interior space-time admits conformal motion. We show that for a wide range of positive values of the brane tension, it is possible to fill this wormholes with non-exotic matter, that is, matter obeying the energy conditions, departing from an important theoretical shortcoming of General Relativity wormholes.