Schwinger terms in Weyl-invariant and diffeomorphism-invariant 2-d scalar field theory

Details Schwinger terms in Weyl-invariant and diffeomorphism-invariant 2-d scalar field theory Schwinger terms in Weyl-invariant and diffeomorphism-invariant 2-d scalar field theory

1997-10-30

arxiv.org/abs/hep-th/9710238v2

Phys.Rev. D57 (1998) 4833-4838

Physics

High Energy Physics

High Energy Physics - Theory

8 pages, RevTex. Conclusions and references added. To appear in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.57.4833

We compute the Schwinger terms in the energy-momentum tensor commutator algebra from the anomalies present in Weyl-invariant and diffeomorphism-invariant effective actions for two dimensional massless scalar fields in a gravitational background. We find that the Schwinger terms are not sensitive to the regularization procedure and that they are independent of the background metric.

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