  The assumption is made that only transversely polarized photons are needed
for a correct description of Quantum Electrodynamics. A simple mathematical
transformation is used to introduce new field operators which satisfy the full
Maxwell equations. In particular, they reproduce Coulomb forces between
different regions of the charge field. The analogy with the polaron problem can
give some insight in the physics underlying the transformation. In this context
it is shown that the interaction of the electron field with a transversely
polarized photon field can form bound states. The binding energy peaks for long
wavelength photons.
