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Eternal and pulsating universes in Einstein-Cartan space-time

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Abstract

We exhibit a class of closed (Bianchi type IX), homogeneous and isotropic universes generated by an unpolarized spinning perfect fluid on the basis of Einstein-Cartan theory. The models are non-singular and pulsate around a static configuration in an endless number of cycles. All of them undergo, periodic phases of accelerated (inflationary) expansion and may be reduced to the dynamics of an anharmonic oscillator.

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Authors and Affiliations

  1. Departamento de Física, CCEN, Universidade Federal da Paraíba, João Pessoa, PB, Brazil

    M. J. D. Assad & C. Romero

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  1. M. J. D. Assad
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  2. C. Romero
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Assad, M.J.D., Romero, C. Eternal and pulsating universes in Einstein-Cartan space-time. Astrophys Space Sci 191, 289–297 (1992). https://doi.org/10.1007/BF00644776

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