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    • Cosmological model of interacting phantom and Yang–Mills fields

      V K Shchigolev

      Research Articles Volume 78 Issue 5 May 2012 pp 819-825

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/078/05/0819-0825

    • Keywords

       

      Cosmological model; interaction; phantom; Yang–Mills field; accelerated expansion.

    • Abstract

       

      In this paper, we consider a model of interacting phantom and Yang–Mills (YM) fields by assuming dilaton-type coupling. Using the specific solution for YM equation previously found by the author, we obtain simple exact solutions for the accelerated expansion of the Friedmann–Robertson–Walker (FRW) cosmological model. Besides, we derive induced potentials of phantom field corresponding to some given regimes of expansion. The effective equations of state (EoS) have been reconstructed for all types of models considered here.

    • Author Affiliations

       

      V K Shchigolev1

      1. Department of Theoretical Physics, Ulyanovsk State University, 42 L Tolstoy Street, Ulyanovsk-432000, Russia

    • Dates

       
      Published
      May 2012
      Manuscript received
      16 September 2011
      Manuscript revised
      9 December 2011
      Accepted
      23 December 2011

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