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Nonsingular Chaplygin gas cosmologies in universes connected by a wormhole

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Abstract

We present some exact solutions of the Einstein equations with an anisotropic fluid exploiting the Chaplygin equation of state. The solutions describe space-times with two identical T-regions and an intermediate static spherically symmetric R-region containing a wormhole. The metric in the T-region represents an anisotropic Kantowski-Sachs cosmological model. Its evolution starts from a horizon and develops according to different scenarios including eternal expansion, contraction and also a finite lifetime.

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Authors and Affiliations

  1. Physical Department, Lobachevsky State University of Nizhni Novgorod, Gagarin ave. 23, Nizhni Novgorod, 603950, Russia

    A. Mokeeva

  2. Institute of Physics, Kazan Federal University, Kremlyovskaya st. 18, Kazan, 420008, Russia

    V. Popov

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  1. A. Mokeeva
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  2. V. Popov
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Correspondence to A. Mokeeva.

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Mokeeva, A., Popov, V. Nonsingular Chaplygin gas cosmologies in universes connected by a wormhole. Gravit. Cosmol. 19, 57–64 (2013). https://doi.org/10.1134/S0202289313010076

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  • DOI: https://doi.org/10.1134/S0202289313010076

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