Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1995-11-17
Physics
High Energy Physics
High Energy Physics - Phenomenology
To appear in the Proceedings of the School on String Gravity and Physics at the Planck Scale, Erice, Sicily, 8-19 September, E
Scientific paper
The reheating stage in post-inflationary cosmologies is reanalyzed. New techniques from non-equilibrium quantum field theory allow a consistent derivation of the equation of motion including the non-linearity of the dynamics. These offer a rationale for the elementary theory of reheating based on single particle decay which is seen to be valid only in the linear regime of coherent oscillations of the scalar field. A new non-perturbative mechanism of induced amplification of quantum fluctuations is introduced and studied in detail, both analytically and numerically. This is a non-linear mechanism that is typically a far more efficient way of transfering energy out of the zero mode and into production of lighter particles than single particle decay. Thermalization is discussed and we estimate the reheating temperature to be of the order of the inflaton mass, thus providing a potential solution to the Polonyi and moduli problems.
Boyanovsky Daniel
D'Attanasio Marco
de Vega Hector J.
Holman Richard
Lee Da-Shin
No associations
LandOfFree
New Aspects of Reheating does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with New Aspects of Reheating, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New Aspects of Reheating will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-129260