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arXiv · hep-th/0312102

Transient Quintessence from Group Manifold Reductions or how all roads lead to Rome

Eric Bergshoeff·Andres Collinucci·Ulf Gran·Mikkel Nielsen·Diederik Roest
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Abstract

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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Eric Bergshoeff, Andres Collinucci, Ulf Gran, Mikkel Nielsen, Diederik Roest. 2004-01-08. Transient Quintessence from Group Manifold Reductions or how all roads lead to Rome. https://doi.org/10.1088/0264-9381%2F21%2F8%2F003

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