Vacuum Polarization in Quantum Electrodynamics
Abstract
It is shown that if the photon propagator is set equal to 1k2 in the expression for the vacuum polarization, then Z3-1 (where Z3 is the photon wave-function 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