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Some dynamical aspects of interacting quintessence model

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Abstract

In this paper, we consider a particular form of coupling, namely \(B=\sigma (\dot{\rho _m}-\dot{\rho _\phi })\) in spatially flat (\(k=0\)) Friedmann–Lemaitre–Robertson–Walker (FLRW) space–time. We perform phase-space analysis for this interacting quintessence (dark energy) and dark matter model for different numerical values of parameters. We also show the phase-space analysis for the ‘best-fit Universe’ or concordance model. In our analysis, we observe the existence of late-time scaling attractors.

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Acknowledgements

The authors are thankful to Indian Institute of Engineering, Science and Technology (Shibpur) and Midnapore College (autonomous) for their support.

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Authors and Affiliations

  1. Department of Basic and Applied Sciences, Indian Institute of Engineering, Science and Technology, Shibpur, Howrah, 711 103, India

    Binayak S Choudhury & Devosmita Chatterjee

  2. Department of Mathematics, Midnapore College (Autonomous), Medinipur, 721 101, India

    Himadri Shekhar Mondal

Authors
  1. Binayak S Choudhury
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  2. Himadri Shekhar Mondal
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  3. Devosmita Chatterjee
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Correspondence to Binayak S Choudhury.

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Choudhury, B.S., Mondal, H.S. & Chatterjee, D. Some dynamical aspects of interacting quintessence model. Pramana - J Phys 90, 55 (2018). https://doi.org/10.1007/s12043-018-1544-y

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  • DOI: https://doi.org/10.1007/s12043-018-1544-y

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