On Coarse-grained Entropy and Stimulated Emission in Curved Space-Time
High Energy Physics - Theory
2009-10-22 v1
Abstract
We study the entropy generation and particle production in scalar quantum field theory in expanding spacetimes with many-particle mixed initial states. The recently proposed coarse-grained entropy approach by Brandenberger et. al. is applied to systems which may have a non-zero initial entropy. We find that although the the particle production is amplified as a result of boson statistics, the (coarse-grained) entropy generation is {\em attenuated} when initial particles are present.
Keywords
Cite
@article{arxiv.hep-th/9308070,
title = {On Coarse-grained Entropy and Stimulated Emission in Curved Space-Time},
author = {Esko Keski-Vakkuri},
journal= {arXiv preprint arXiv:hep-th/9308070},
year = {2009}
}
Comments
9 pages, LaTeX file, CTP-2213