DGP with bubble of nothing
General Relativity and Quantum Cosmology
2014-09-04 v2 High Energy Physics - Theory
Abstract
We construct exact solutions with the bubble of nothing in the Dvali-Gabadadze-Porrati braneworld model. The configuration with a single brane can be constructed, unlike in the Randall-Sundrum braneworld model. The geometry on the single brane looks like the Einstein-Rosen bridge. We also discuss the junction of multibranes. Surprisingly, even without any artificial matter fields on the branes such as three-dimensional tension of the codimension-two objects, two branes can be connected in certain configurations. We investigate solutions of multibranes too. The presence of solutions may indicate the semiclassical instability of the models.
Keywords
Cite
@article{arxiv.1402.2729,
title = {DGP with bubble of nothing},
author = {Keisuke Izumi and Tetsuya Shiromizu},
journal= {arXiv preprint arXiv:1402.2729},
year = {2014}
}
Comments
Version accepted by PRD (v2): 9 pages, 13 figures