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Dark energy cosmological models with general forms of scale factor

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Abstract.

In this paper, we have constructed dark energy models in an anisotropic Bianchi-V space-time and studied the role of anisotropy in the evolution of dark energy. We have considered an anisotropic dark energy fluid with different pressure gradients along different spatial directions. In order to obtain a deterministic solution, we have considered three general forms of scale factor. The different forms of scale factors considered here produce time-varying deceleration parameters in all the cases that simulates the cosmic transition. The variable equation-of-state (EoS) parameter, skewness parameters for all the models are obtained and analyzed. The physical properties of the models are also discussed.

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Authors and Affiliations

  1. Department of Mathematics, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, 500078, Hyderabad, India

    B. Mishra & Pratik P. Ray

  2. Centre of Theoretical Physics, Jamia Millia Islamia, 110025, New Delhi, India

    S. K. J. Pacif

Authors
  1. B. Mishra
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  2. Pratik P. Ray
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  3. S. K. J. Pacif
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Correspondence to B. Mishra.

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Mishra, B., Ray, P.P. & Pacif, S.K.J. Dark energy cosmological models with general forms of scale factor. Eur. Phys. J. Plus 132, 429 (2017). https://doi.org/10.1140/epjp/i2017-11697-y

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  • DOI: https://doi.org/10.1140/epjp/i2017-11697-y

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