Inflationary cosmology with scalar field and radiation
General Relativity and Quantum Cosmology
2015-06-25 v1
Abstract
We present a simple, exact and self-consistent cosmology with a phenomenological model of quantum creation of radiation due to decay of the scalar field. The decay drives a non-isentropic inflationary epoch, which exits smoothly to the radiation era, without reheating. The initial vacuum for radiation is a regular Minkowski vacuum. The created radiation obeys standard thermodynamic laws, and the total entropy produced is consistent with the accepted value. We analyze the difference between the present model and a model with decaying cosmological constant previously considered.
Cite
@article{arxiv.gr-qc/9905105,
title = {Inflationary cosmology with scalar field and radiation},
author = {Alexei Nesteruk},
journal= {arXiv preprint arXiv:gr-qc/9905105},
year = {2015}
}
Comments
13 pages Latex; to appear Gen. Rel. Grav