Vacuum Polarization in Quantum Electrodynamics
Abstract
It is shown that if the photon propagator is set equal to 1k^{2} in the expression for the vacuum polarization, then Z31 (where Z_{3} is the photon wavefunction renormalization constant) diverges like a single power of the logarithm of an ultraviolet cutoff in all orders of perturbation theory. The implication of this result upon the possible finiteness of ordinary quantum electrodynamics is discussed.
 Publication:

Physical Review
 Pub Date:
 November 1967
 DOI:
 10.1103/PhysRev.163.1699
 Bibcode:
 1967PhRv..163.1699J