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Radiative isotropic cosmologies with extra dimensions

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We solve Einsteins equations in an n-dimensional vacuum with the simplest ansatz leading to a Friedmann-Robertson-Walker (FRW) four-dimensional space time. We show that the FRW model must be of radiation. For the open models the extra dimensions contract as a result of cosmological evolution. For flat and closed models they contract only when there is one extra dimension.

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Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevD.34.1202

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Articles publicats en revistes (Física de la Matèria Condensada)

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Radiative isotropic cosmologies with extra dimensions