Generalized cosmic Chaplygin inflationary model on the brane

Abdul Jawad; Shamaila Rani; Sidra Mohsaneen

doi:10.1140/epjp/i2016-16234-0

EPJ

Generalized cosmic Chaplygin inflationary model on the brane

Abdul Jawad¹^*, Shamaila Rani¹ and Sidra Mohsaneen²

¹ Department of Mathematics, COMSATS Institute of Information Technology, Lahore, Pakistan
² Department of Mathematics, University of the Punjab, Quaid-e-Azam Campus, 54590, Lahore, Pakistan

Received: 5 November 2015
Revised: 21 May 2016
Accepted: 16 June 2016
Published online: 15 July 2016

Abstract

The generalized cosmic Chaplygin model in the context of brane-inflationary background is being considered by taking the standard scalar field as matter field. We develop the modified first Friedmann equation and conservation equation under slow-roll approximations. We also discuss the feature of the generalized cosmic Chaplygin gas model in the presence of chaotic potential in the high-energy limit. Various inflationary parameters, such as slow-roll parameters, scalar and tensor power spectra, scalar spectral index and tensor-to-scalar ratio are evaluated. To this end, Planck results are used to constraint new parameters.