Generalized Virasoro anomaly for dilaton coupled theories
High Energy Physics - Theory
2007-05-23 v2 General Relativity and Quantum Cosmology
Abstract
We derive the anomalous transformation law of the quantum stress tensor for a 2D massless scalar field coupled to an external dilaton. This provides a generalization of the Virasoro anomaly which turns out to be consistent with the trace anomaly. We apply these results to compute vacuum polarization of a spherical star based on the equivalence principle.
Cite
@article{arxiv.hep-th/0307096,
title = {Generalized Virasoro anomaly for dilaton coupled theories},
author = {A. Fabbri and S. Farese and J. Navarro-Salas},
journal= {arXiv preprint arXiv:hep-th/0307096},
year = {2007}
}
Comments
10 pages, latex; misprints corrected