Rotation Operator vs Particle Creation in a Curved Space Time
High Energy Physics - Theory
2007-05-23 v1
Abstract
Taking into account a neutral massive scalar field minimally coupled to gravity, in a Robertson-Walker metric, it is shown that when the final state is connected with the initial one by means of a Bogoliubov transformation, which does not include the single-mode rotation operator, the mean value of created particles is conserved. When the rotation operator is considered, it is still possible to use the approach of single-mode squeezed operators and get the entropy as the logarithm of the created particles.
Cite
@article{arxiv.hep-th/9610117,
title = {Rotation Operator vs Particle Creation in a Curved Space Time},
author = {Carlos E. Laciana},
journal= {arXiv preprint arXiv:hep-th/9610117},
year = {2007}
}
Comments
10 pages