Canonical and path integral quantisation of string cosmology models
General Relativity and Quantum Cosmology
2014-11-17 v1 High Energy Physics - Theory
Abstract
We discuss the quantisation of a class of string cosmology models that are characterized by scale factor duality invariance. We compute the amplitudes for the full set of classically allowed and forbidden transitions by applying the reduce phase space and the path integral methods. We show that these approaches are consistent. The path integral calculation clarifies the meaning of the instanton-like behaviour of the transition amplitudes that has been first pointed out in previous investigations.
Cite
@article{arxiv.gr-qc/9902004,
title = {Canonical and path integral quantisation of string cosmology models},
author = {Marco Cavaglia and Carlo Ungarelli},
journal= {arXiv preprint arXiv:gr-qc/9902004},
year = {2014}
}
Comments
18 pages,2 eps figures, LaTeX2e, macro files included (epsf.tex,epsf.sty), macros of Classical and Quantum Gravity used; accepted for publication on Classical and Quantum Gravity