The solution of tachyon inflation in curved universe

Abstract

In this paper, we have considered the curved universe which is filled by tachyonic field. We have found the exact solutions for the field, pressure, density, and scale factor and some cosmological parameters. In such universe, we have investigated the role of tachyonic field in different stages of k for the evolution of the universe. Finally we draw the graphs for the scale factor, Hubble's parameter, energy density, pressure, acceleration parameter, equation of state and potential for the different values of k. Also we obtained the exact form of field which shows that the tachyonic field has the kink form.

8 pages, 21 figures

References in corpus (20)

• Dynamics of dark energy
• Rolling Tachyon
• Tachyon Matter
• Accelerated expansion of the universe driven by tachyonic matter
• Field Theory of Tachyon Matter
• Cosmological Evolution of the Rolling Tachyon
• Tachyon couplings on non-BPS D-branes and Dirac-Born-Infeld action
• Power-Law Inflation from the Rolling Tachyon
• Holographic Chaplygin gas model
• Inflation from a Tachyon Fluid?
• What is needed of a tachyon if it is to be the dark energy?
• Thoughts on Tachyon Cosmology
• Cosmological dynamics of the tachyon with an inverse power-law potential
• Problems with Tachyon Inflation
• Holographic tachyon model of dark energy
• Tracking solutions in tachyon cosmology
• Implementing Power Law Inflation with Tachyon Rolling on the Brane
• Slowly varying tachyon and tachyon potential
• On-shell S-matrix and tachyonic effective actions
• Inhomogeneous Fragmentation of the Rolling Tachyon

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• Stability and interacting $f(T,\mathcal{T})$ gravity with modified Chaplygin gas
• Interacting $F(R,T)$ gravity with modified Chaplygin gas
• Logarithmic entropy corrected holographic dark energy with $F(R,T)$ gravity
• Cosmological Tests of $f(R,G,T)$ Dark Energy Model in FRW Universe
• Observational constraints and stability in viscous $f(T,\mathcal{T})$ gravity
• Bouncing cosmological models in a functional form of F(R) gravity
• Observational Hubble parameter data constraints on the interactive model of $f(T)$ gravity with particle creation
• Extended Bose-Einstein condensate dark matter in viscous Gauss-Bonnet gravity
• The interaction of extended Bose-Einstein condensate dark matter with viscous $f(T,B)$ gravity
• Viscous interacting and stability on dark matter Bose-Einstein condensation with modified Chaplygin gas
• Correspondence between particle creation and dark components interaction in the context of $f(\mathcal{G})$ gravity