Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1999-10-21
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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