PPT Slide
F?? = ?? A? - ? ? A?+ [ A? , A? ]
D? F?? = 0 ? ? ? F?? + [ A? , F?? ] = 0
Gauge transformations: A? OA? O-1 - ?? O O-1
F O F O-1
sc = (n - 2) / 2
Subcritical n < 4
Critical n = 4
Supercritical n > 4
NONLINEAR RELATIVISTIC FIELD THEORIES
Lorentz Gauge: ?? A ? = 0 ? ? A = A ?? A - A3 (YM)
Coulomb Gauge: ? i A i = 0