Cosmological String Solutions in 4 Dimensions from 5d Black Holes

Details Cosmological String Solutions in 4 Dimensions from 5d Black Holes Cosmological String Solutions in 4 Dimensions from 5d Black Holes

1993-08-27

arxiv.org/abs/hep-th/9308131v1

Phys.Lett. B320 (1994) 253-258

Physics

High Energy Physics

High Energy Physics - Theory

Latex, 3 figures, epsfig.sty, DESY 93-118

Scientific paper

10.1016/0370-2693(94)90653-X

We obtain cosmological four dimensional solutions of the low energy effective string theory by reducing a five dimensional black hole, and black hole--de Sitter solution of Einstein gravity down to four dimensions. The appearance of a cosmological constant in the five dimensional Einstein--Hilbert action produces a special dilaton potential in the four dimensional effective string action. Cosmological scenarios implemented by our solutions are discussed.

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