Gowdy Cosmological Models from Stringy Black Holes

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In the framework of 4D Einstein-Maxwell Dilaton-Axion theory we show how to obtain a family of both unpolarized and polarized S^1XS^2 Gowdy cosmological models endowed with nontrivial axion, dilaton and electromagnetic fields from a solitonic rotating black hole-type solution by interchanging the r and t coordinates in the region located between the horizons of the black hole configuration. We also get a family of Kantowski-Sachs cosmologies with topology R^1XS^2 from the polarized Gowdy cosmological models by decompactifying one of the compact dimensions.
7 pages in latex, no figures, Talk presented at the V Mexican Workshop on Gravitation and Mathematical Physics, Morelia, Michoacan, Mexico, November 24-28, 2003

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High Energy Physics - Theory

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http://salesiana.dossiersoluciones.com/handle/123456789/109972

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-th/0603250
 http://arxiv.org/abs/hep-th/0603250

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arXiv