Eternal acceleration from M-theory
Loading...
Date
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Description
The dimensional reduction of $D$-dimensional spacetimes arising in string/M-theory, to the conformal Einstein frame, may give rise to cosmologies with accelerated expansion. Through a complete analysis of the dynamics of doubly warped product spacetimes, in terms of scale invariant variables, it is demonstrated that for $D \geq 10$, eternally accelerating 4-dimensional $κ= -1$ Friedmann cosmologies arise from dimensional reduction on an internal space with negative Einstein geometry.
23 pages, 5 figures; references/comments added
23 pages, 5 figures; references/comments added