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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/072/05/0903-0914

    • Keywords

       

      RS braneworld; hyperbolic potential; cosmology.

    • Abstract

       

      In this paper we study inflationary dynamics with a scalar field in an inverse coshyperbolic potential in the braneworld model. We note that a sufficient inflation may be obtained with the potential considering slow-roll approximation in the high energy limit. We determine the minimum values of the initial inflaton field required to obtain sufficient inflation and also determine the relevant inflationary parameters. The numerical values of spectral index of the scalar perturbation spectrum are determined by varying the number of e-foldings for different initial values of the inflaton field. The result obtained here is in good agreement with the current observational limits.

    • Author Affiliations

       

      Dilip Paul1 2 Bikash Chandra Paul1 Xin-He Meng3

      1. Department of Physics, North Bengal University, Siliguri, Dist. Darjeeling 734 013, India
      2. Khoribari High School (H.S.), Khoribari, Dist. Darjeeling 734 427, India
      3. Department of Physics, Nankai University, Tianjin 300071, People’s Republic of China and BK21 Division of Advanced Research and Education in Physics, Hanyang University, Seoul 133-791, Korea
    • Dates

       
  • Pramana – Journal of Physics | News

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