Warped de Sitter compactifications

Details Warped de Sitter compactifications Warped de Sitter compactifications

2011-03-28

arxiv.org/abs/1103.5326v3

JHEP 1201:142,2012

Physics

High Energy Physics

High Energy Physics - Theory

25 pages, 2 figures; v3: references added

Scientific paper

We show that the warped de Sitter compactifications are possible under certain conditions in D-dimensional gravitational theory coupled to a dilaton, a form field strength, and a cosmological constant. We find that the solutions of field equations give de Sitter spacetime with the warped structure, and discuss cosmological models directly obtained from these solutions. We also construct a cosmological model in the lower-dimensional effective theory. If there is a field strength having non-vanishing components along the internal space, the moduli can be fixed at the minimum of the effective potential where a de Sitter vacuum can be obtained.

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