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- Title
Inflationary dynamics in gravity.
- Authors
Sharif, M.; Ikram, Ayesha
- Abstract
This paper investigates inflationary dynamics for isotropic and homogeneous universe model in the background of gravity. We construct Hubble-flow functions, slow-roll parameters, amplitude of scalar power spectrum, spectral index and tensor-scalar ratio for a particular form of equation of state which describes quasi-de Sitter expansion. The dynamics of inflationary epoch is analyzed for scalar field as well as fluid cosmology with viable power-law model. We obtain different potential functions that correspond to chaotic inflation and Starobinsky type models. The graphical behavior of these parameters shows compatible results with observational Planck 2015 data in this gravity.
- Subjects
INFLATIONARY universe; HUBBLE'S law; EQUATIONS of state; POWER law (Mathematics); DARK energy
- Publication
International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology, 2017, Vol 26, Issue 4, p-1
- ISSN
0218-2718
- Publication type
Article
- DOI
10.1142/S0218271817500304