Generalized Virasoro anomaly for dilaton coupled theories
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.
- Publication:
-
arXiv e-prints
- Pub Date:
- July 2003
- DOI:
- 10.48550/arXiv.hep-th/0307096
- arXiv:
- arXiv:hep-th/0307096
- Bibcode:
- 2003hep.th....7096F
- Keywords:
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- General Relativity and Quantum Cosmology;
- High Energy Physics - Theory
- E-Print:
- 10 pages, latex