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Bianchi type string cosmological models in f(R,T) gravity

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Abstract.

In this work we have studied Bianchi-III and - VI 0 cosmological models with string fluid source in f(R,T) gravity (T. Harko et al., Phys. Rev. D 84, 024020 (2011)), where R is the Ricci scalar and T the trace of the stress energy-momentum tensor in the context of late time accelerating expansion of the universe as suggested by the present observations. The exact solutions of the field equations are obtained by using a time-varying deceleration parameter. The universe is anisotropic and free from initial singularity. Our model initially shows acceleration for a certain period of time and then decelerates consequently. Several dynamical and physical behaviors of the model are also discussed in detail.

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Authors and Affiliations

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

    P. K. Sahoo, B. Mishra & Parbati Sahoo

  2. Center for Theoretical Physics, Jamia Millia Islamia, 110025, New Delhi, India

    S. K. J. Pacif

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  1. P. K. Sahoo
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  2. B. Mishra
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  3. Parbati Sahoo
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  4. S. K. J. Pacif
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Correspondence to P. K. Sahoo.

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Sahoo, P.K., Mishra, B., Sahoo, P. et al. Bianchi type string cosmological models in f(R,T) gravity. Eur. Phys. J. Plus 131, 333 (2016). https://doi.org/10.1140/epjp/i2016-16333-x

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