A. Arrizabalaga, J. Smit
Published 2003-01-14Version 1
We discuss the method of $\Phi$-derivable approximations in gauge theories. There, two complications arise, namely the violation of Bose symmetry in correlation functions and the gauge dependence. For the latter we argue that the error introduced by the gauge dependent terms is controlled, therefore not invalidating the method.
Comments: 5 pages, 4 small figures, to appear in the proceedings of SEWM 2002
The large $N$ limit from the lattice
On the relationship between gauge dependence and IR divergences in the $\hbar$-expansion of the effective potential
Gauge Dependence of Mass and Condensate in Chirally Asymmetric Phase of Quenched QED3
