Portal de Periódicos da CAPES

Conformal anomaly for massless quantum electrodynamics in spherical spacetime

1980; American Physical Society; Volume: 21; Issue: 8 Linguagem: Inglês

10.1103/physrevd.21.2226

1538-4500

G.M. Shore,

Black Holes and Theoretical Physics

The occurrence of anomalies in the trace of the energy-momentum tensor for massless quantum electrodynamics in spherical spacetime is discussed. It is found that, in contrast to previous investigations of conformal scalar fields, the coefficient of the free-field anomaly acquires a coupling-constant dependence in the interacting theory. In addition, there is a contribution proportional to the renormalization-group $\ensuremath{\beta}$ function. The importance of these results in determining the anomaly for an arbitrary Riemannian spacetime is explained.