The role of the field redefinition in noncommutative Maxwell theory
I. Fruhwirth, J. M. Grimstrup, Z. Morsli, L. Popp, M. Schweda
Abstract
We discuss θ-deformed Maxwell theory at first order in θ with the help of the Seiberg-Witten (SW) map. With an appropriate field redefinition consistent with the SW-map we analyse the one-loop corrections of the vacuum polarization of photons. We show that the radiative corrections obtained in a previous work may be described by the Ward-identity of the BRST-shift symmetry corresponding to a field redefinition.
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