Quintessential Inflation with Dissipative fluid

Abstract

We have investigated cosmological models with a self-interacting scalar field and a dissipative matter fluid as the sources of matter. Different variables are expressed in terms of a {\it generating function}. Exact solutions are obtained for one particular choice of the {\it generating function} The potential corresponding to this generating function is a standard tree-level potential arising in the perturbative regime in quantum field theory. With suitable choice of parameters, the scale factor in our model exhibits both inflationary behaviour in the early universe as well as an accelerating phase at late times with a decelerating period in between. It also satisfies the constraints for primeval nucleosynthesis and structure formation and seems to solve the cosmic coincidence problem. The solution exhibits a attractor nature towards a asymptotic de-sitter universe.

8 pages, Revtex. The title has been changed. Some new features have been included

References in corpus (7)

• A Flat Universe from High-Resolution Maps of the Cosmic Microwave Background Radiation
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Cited by in corpus (2)

• Tachyon field inspired dark energy and supernovae constraints
• Constraining the quintessential $\alpha$-attractor inflation through dynamical horizon exit method