Particle Production in Matrix Cosmology
High Energy Physics - Theory
2009-11-10 v2
Abstract
We consider cosmological particle production in 1+1 dimensional string theory. The process is described most efficiently in terms of anomalies, but we also discuss the explicit mode expansions. In matrix cosmology the usual vacuum ambiguity of quantum fields in time-dependent backgrounds is resolved by the underlying matrix model. This leads to a finite energy density for the "in" state which cancels the effect of anomalous particle production.
Cite
@article{arxiv.hep-th/0403275,
title = {Particle Production in Matrix Cosmology},
author = {Sumit R. Das and Joshua L. Davis and Finn Larsen and Partha Mukhopadhyay},
journal= {arXiv preprint arXiv:hep-th/0403275},
year = {2009}
}
Comments
24 pages, 1 figure; v2: references added, minor changes