On Bouncing Brane-Worlds, S-branes and Branonium Cosmology
release_rev_7d240486-67d6-4e79-a4bf-6ce073726adf
by
C.P. Burgess,
F. Quevedo,
R. Rabadan,
G. Tasinato,
I. Zavala
2003
Abstract
We present several higher-dimensional spacetimes for which observers living
on 3-branes experience an induced metric which bounces. The classes of examples
include boundary branes on generalised S-brane backgrounds and probe branes in
D-brane/anti D-brane systems. The bounces we consider normally would be
expected to require an energy density which violates the weak energy condition,
and for our co-dimension one examples this is attributable to bulk curvature
terms in the effective Friedmann equation. We examine the features of the
acceleration which provides the bounce, including in some cases the existence
of positive acceleration without event horizons, and we give a geometrical
interpretation for it. We discuss the stability of the solutions from the point
of view of both the brane and the bulk. Some of our examples appear to be
stable from the bulk point of view, suggesting the possible existence of stable
bouncing cosmologies within the brane-world framework.
In text/plain
format
hep-th/0310122v2
access all versions, variants, and formats of this works (eg, pre-prints)
This is a specific, static metadata record, not necessarily linked to any current entity in the catalog.