Anti-de-Sitter Island-Universes from 5D Standing Waves
Abstract
We construct simple standing wave solutions in a 5D space-time with a ghost scalar field. The nodes of these standing waves are 'islands' of 4D Minkowski space-time. For the 5D model with increasing (decreasing) warp factor there are a finite (infinite) number of nodes and thus Minkowski island-universes having different parameters, such as gravitational and cosmological constants. This feature is similar to the assumptions of the landscape models, which postulate a large number of universes with different parameters. This standing wave solution also provides a new localization mechanism - matter fields can reside only on Minkowski 'islands', where the background space-time does not oscillate.
Keywords
Cite
@article{arxiv.0904.2828,
title = {Anti-de-Sitter Island-Universes from 5D Standing Waves},
author = {Merab Gogberashvili and Douglas Singleton},
journal= {arXiv preprint arXiv:0904.2828},
year = {2010}
}
Comments
14 page pre-print format. Discussion about connection to Weyl gravity added and "E&M" localization method added. To be published MPLA