On the Effective Evolution for the Inflaton

Details On the Effective Evolution for the Inflaton On the Effective Evolution for the Inflaton

2004-09-30

arxiv.org/abs/hep-ph/0409353v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 2 eps figures. Based on talk given at 10th International Symposium on Particles, Strings and Cosmology (PASCOS 04 and

Scientific paper

The dynamics of the inflaton field is studied in the context of its interaction with bosonic and fermionic fields modeled by a minimal SUSY like model. Our results are based on the observation that in typical multifield inflation models there are parameter regions for which nonlinear and nonperturbative effects can become important and that can lead to important changes in the dynamics of the inflaton field. In those parameter regions feasible to inflation, it is possible the emergence of effective strong dissipative effects that alone can sustain inflation long enough and with observational effects on density perturbations.

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