PT Journal
AU Agullo, I
   Landete, A
   Navarro-Salas, J
TI Electric-magnetic duality and renormalization in curved spacetimes
SO Physical Review D
JI Phys. Rev. D
PY 2014
BP 124067
EP 7pp
VL 90
IS 12
DI 10.1103/PhysRevD.90.124067
LA English
AB We point out that the duality symmetry of free electromagnetism does not hold in the quantum theory if an arbitrary classical gravitational background is present. The symmetry breaks in the process of renormalization, as also happens with conformal invariance. We show that a similar duality anomaly appears for a massless scalar field in 1 + 1 dimensions.
ER