2019/04/30 by Aatifa Bargach, Farida Bargach, Ahmed Errahmani +1 · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Context (archaeology) #Cosmology #Cosmology and Gravitation Theories #Holography #Inflation (cosmology) #Noncommutative and Quantum Gravity Theories #Quadratic equation #Scalar (mathematics) #Scalar field #Slow roll #Tachyon #gr-qc #hep-th
paper · pdf · doi:10.1142/s0218271820500108
published as IJMPD, 29, No. 2 (2020) 2050010 · 12 pages, 35 figures, reference added, manuscript improved
arxiv created 2019/06/17 · openalex publication_date 2019/12/02 · openalex created_date 2019/12/13 · arxiv updated 2020/04/21 · openalex updated_date 2026/08/05
We investigate the observational constraints on inflationary parameters in the context of a holographic cosmology with an induced gravity correction. We consider two situations where a universe is first filled with a scalar field and second with a tachyon field. Both cases are investigated in a slow-roll regime. We adopt a quadratic potential and an exponential potential for the scalar and the tachyon inflation, respectively. In this regard, the standard background and perturbative parameters characterizing the inflationary era are modified by correction terms. We show a good agreement between theoretical model parameters and Planck2018 observational data for both scalar and tachyon fields.