Perfect fluid braneworld model
Abstract
By considering 5dimensional cosmological models with a bulk filled with a perfect fluid and a cosmological constant, we have found regular instantonic solution which is free from any singularity at the origin of the extracoordinate and describe 5dimensional asymptotically anti de Sitter wormhole, when the bulk has a topology $ R \times S^4 $ and is filled with dust and a negative cosmological constant. Compactified braneworld instantons which are built up from such instantonic solution describe either a single brane or a string of branes. Their analytical continuation to the pseudoRiemannian metric can give rise to either 4dimensional inflating branes or solutions with the same dynamical behaviour for extradimension and branes, in addition to multitemporal solutions. Dust braneworld models with other spatial topologies are also considered.
 Publication:

arXiv eprints
 Pub Date:
 November 2001
 arXiv:
 arXiv:hepth/0111291
 Bibcode:
 2001hep.th...11291B
 Keywords:

 High Energy Physics  Theory
 EPrint:
 14 pages, LateX2e, 4 figures