Two observers calculate the trace anomaly
High Energy Physics - Theory
2009-10-28 v2 General Relativity and Quantum Cosmology
Abstract
We adapt a calculation due to Massacand and Schmid to the coordinate independent definition of time and vacuum given by Capri and Roy in order to compute the trace anomaly for a massless scalar field in a curved spacetime in 1+1 dimensions. The computation which requires only a simple regulator and normal ordering yields the well-known result in a straightforward manner.
Cite
@article{arxiv.hep-th/9508077,
title = {Two observers calculate the trace anomaly},
author = {A. Z. Capri and M. Kobayashi and D. J. Lamb},
journal= {arXiv preprint arXiv:hep-th/9508077},
year = {2009}
}
Comments
RevTeX, 13 pages, some typos corrected and an appendix added, this is the version to appear in Class. and Quantum Gavity