Transient quintessence from group manifold reductions or how all roads lead to Rome

We investigate the accelerating phases of cosmologies supported by a metric, scalars and a single exponential scalar potential. The different solutions can be represented by trajectories on a sphere and we find that quintessence happens within the 'arctic circle' of the sphere. Furthermore...

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Bibliographic Details
Published in:Classical and Quantum Gravity
Main Authors: Bergshoeff, E, Collinucci, A, Gran, U, Nielsen, M, Roest, D
Format: Article in Journal/Newspaper
Language:English
Published: 2004
Subjects:
ACCELERATING COSMOLOGIES
EXPONENTIAL POTENTIALS
P-BRANES
SUPERGRAVITY THEORIES
DOMAIN-WALLS
MODELS
DIMENSIONS
SUPERNOVAE
UNIVERSES
COMPACT
Arctic
Online Access:https://hdl.handle.net/11370/132f0f0b-8e67-4d41-865f-544958f97fcf
https://research.rug.nl/en/publications/132f0f0b-8e67-4d41-865f-544958f97fcf
https://doi.org/10.1088/0264-9381/21/8/003
https://pure.rug.nl/ws/files/6679623/2004ClassQuantGravBergshoeff1.pdf
Description
Summary:We investigate the accelerating phases of cosmologies supported by a metric, scalars and a single exponential scalar potential. The different solutions can be represented by trajectories on a sphere and we find that quintessence happens within the 'arctic circle' of the sphere. Furthermore, we obtain multi-exponential potentials from 3D group manifold reductions of gravity, implying that such potentials can be embedded in gauged supergravities with an M-theory origin. We relate the double exponential case to flux compactifications on maximally symmetric spaces and S-branes. In the triple exponential case our analysis suggests the existence of two exotic S(D - 3)-branes in D dimensions.

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