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Exact solution in a string cosmological model

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An Erratum to this article was published on 01 September 2006

Abstract

We construct an exact solution of the Friedmann equations with a phantom scalar matter field originating in string field theory and show the absence of the big-rip singularity. The notable features of the model are a ghost sign of the kinetic term and a special polynomial form of the effective tachyon potential. The constructed solution is stable under small fluctuations of the initial conditions and special variations of the form of the potential.

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Authors and Affiliations

  1. Steklov Mathematical Institute, RAS, Moscow, Russia

    I. Ya. Aref’eva & S. Yu. Vernov

  2. Skobeltsyn Institute of Nuclear Physics, Moscow State University, Moscow, Russia

    A. S. Koshelev

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  1. I. Ya. Aref’eva
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  2. S. Yu. Vernov
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  3. A. S. Koshelev
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__________

Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 148, No. 1, pp. 23–41, July, 2006.

An erratum to this article is available at http://dx.doi.org/10.1007/s11232-006-0118-1.

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Aref’eva, I.Y., Vernov, S.Y. & Koshelev, A.S. Exact solution in a string cosmological model. Theor Math Phys 148, 895–909 (2006). https://doi.org/10.1007/s11232-006-0086-5

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  • DOI: https://doi.org/10.1007/s11232-006-0086-5

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