Generalized Virasoro anomaly for dilaton coupled theories

Details Generalized Virasoro anomaly for dilaton coupled theories Generalized Virasoro anomaly for dilaton coupled theories

2003-07-10

arxiv.org/abs/hep-th/0307096v2

Physics

High Energy Physics

High Energy Physics - Theory

10 pages, latex; misprints corrected

Scientific paper

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.

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