1997/10/31 by C. Adam, Christoph Adam, G. L. Rossini +1
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Pulsars and Gravitational Waves Research #hep-th
paper · pdf · doi:10.1103/physrevd.57.4833
published as Phys.Rev. D57 (1998) 4833-4838 · 8 pages, RevTex. Conclusions and references added. To appear in Phys. Rev. D
arxiv created 1998/01/16 · openalex publication_date 1998/04/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04
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.