Eur. Phys. J. C (2009) 59: 913-916
https://doi.org/10.1140/epjc/s10052-008-0848-3

Regular Article - Theoretical Physics

Tachyon warm-inflationary universe model in the weakly dissipative regime

Instituto de Física, Pontificia Universidad Católica de Valparaíso, Casilla, 4059, Valparaíso, Chile

^* e-mail: joel.saavedra@ucv.cl

Received: 1 October 2008
Revised: 7 November 2008
Published online: 9 January 2009

Abstract

The warm-inflationary universe model in a tachyon field theory is studied in the weakly dissipative regime. We develop our model for an exponential potential and the dissipation parameter Γ=Γ ₀=constant. We describe scalar and tensor perturbations for this scenario.