A solution to Ward-Takahashi-identity in QED3
arXiv:hep-th/0506045
Abstract
Using spectral function of photon we find the reliable results for the effects of vacuum polarization for the dressed fermion propagator in three-dimensional QED.
19pages,Revtex4.abstract,introduction,section III,IV,V and summary are modified.Using sectral function of photon unquenched case becomes simple