Decoherence during Inflation: the generation of classical inhomogeneities
General Relativity and Quantum Cosmology
2016-08-31 v3 Astrophysics
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
We show how the quantum to classical transition of the cosmological fluctuations produced during inflation can be described by means of the influence functional and the master equation. We split the inflaton field into the system-field (long-wavelength modes), and the environment, represented by its own short-wavelength modes. We compute the decoherence times for the system-field modes and compare them with the other time scales of the model. We present the renormalized stochastic Langevin equation for an homogeneous system-field and then we analyze the influence of the environment on the power spectrum for some modes in the system.
Cite
@article{arxiv.gr-qc/0506051,
title = {Decoherence during Inflation: the generation of classical inhomogeneities},
author = {Fernando C. Lombardo and Diana Lopez Nacir},
journal= {arXiv preprint arXiv:gr-qc/0506051},
year = {2016}
}
Comments
17 pages, 15 figures. To appear in Phys. Rev. D