Dynamical System Analysis for Inflation with Dissipation

Details Dynamical System Analysis for Inflation with Dissipation Dynamical System Analysis for Inflation with Dissipation

1997-10-20

arxiv.org/abs/gr-qc/9710093v1

Phys.Rev. D57 (1998) 741-749

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Plain LaTex, 21 pages, 8 eps figs (uses epsf), to be published in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.57.741

We examine the solutions of the equations of motion for an expanding Universe, taking into account the radiation of the inflaton field energy. We then analyze the question of the generality of inflationary solutions in this more general setting of a dissipative system. We find a surprisingly rich behavior for the solutions of the dynamical system of equations in the presence of dissipational effects. We also determine that a value of dissipation as small as $\sim 10^{-7} H$ can lead to a smooth exit from inflation to radiation.

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