The problem of positivity in 1+1 dimensions and Krein spaces
Mathematical Physics
2013-10-11 v1 High Energy Physics - Theory
math.MP
Abstract
The possibility of introducing a positive metric on the states of the massless scalar field in 1+1 dimensions by mean of Krein spaces is examined. Two different realisations in Krein spaces for the massless scalar field are compared. It is proved that one is a particular case of the other. The peculiarities and advantages of both realisations are discussed.
Cite
@article{arxiv.1201.2975,
title = {The problem of positivity in 1+1 dimensions and Krein spaces},
author = {Vera Montalbano},
journal= {arXiv preprint arXiv:1201.2975},
year = {2013}
}
Comments
8 pages, presented to Accadem. dei Fisioc. Siena