Evolution of Non-linear Fluctuations in Preheating after Inflation

Details Evolution of Non-linear Fluctuations in Preheating after Inflation Evolution of Non-linear Fluctuations in Preheating after Inflation

2005-12-13

arxiv.org/abs/gr-qc/0512074v1

Class.Quant.Grav. 23 (2006) 511-526

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

To be published in Class. Quantum Grav

Scientific paper

10.1088/0264-9381/23/2/015

We investigate the evolution of the non-linear long wavelength fluctuations
during preheating after inflation. By using the separate universe approach, the
temporal evolution of the power spectrum of the scalar fields and the curvature
variable is obtained numerically. We found that the amplitude of the large
scale fluctuations is suppressed after non-linear evolution during preheating.

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