Warm inflation with back - reaction: a stochastic approach

Details Warm inflation with back - reaction: a stochastic approach Warm inflation with back - reaction: a stochastic approach

1999-10-21

arxiv.org/abs/gr-qc/9910073v2

Class.Quant.Grav. 17 (2000) 145-151

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

minor changes, 6 pages, no figures, accepted for publication in Classical and Quantum Gravity

Scientific paper

10.1088/0264-9381/17/1/310

I study a stochastic approach for warm inflation considering back - reaction of the metric with the fluctuations of matter field. This formalism takes into account the local inhomogeneities fo the spacetime in a globally flat Friedmann - Robertson - Walker metric. The stochastic equations for the fluctuations of the matter field and the metric are obtained. Finally, the dynamics for the amplitude of these fluctuations in a power - law expansion for the universe are examined.

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