Remarks on a Chern–simons-Like Coupling

Abstract

We consider the static quantum potential for a gauge theory which includes a light massive vector field interacting with the familiar U (1)QED photon via a Chern-Simons-like coupling, by using the gauge-invariant, but path-dependent, variables formalism. An exactly screening phase is then obtained, which displays a marked departure of a qualitative nature from massive axionic electrodynamics. The above static potential profile is similar to that encountered in axionic electrodynamics consisting of a massless axion-like field, as well as to that encountered in the coupling between the familiar U (1)QED photon and a second massive gauge field living in the so-called U (1) h hidden-sector, inside a superconducting box. * Electronic address: patricio.gaete@usm.cl