Eternal acceleration from M-theory

Details Eternal acceleration from M-theory Eternal acceleration from M-theory

2006-02-10

arxiv.org/abs/hep-th/0602102v2

Adv.Theor.Math.Phys.11:371-398,2007

Physics

High Energy Physics

High Energy Physics - Theory

23 pages, 5 figures; references/comments added

Scientific paper

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 $\kappa = -1$ Friedmann cosmologies arise from dimensional reduction on an internal space with negative Einstein geometry.

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