Vacuum polarization in quantum electrodynamics

Apr, 1967
17 pages
Published in:
  • Phys.Rev. 163 (1967) 1699-1715

Citations per year

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Abstract: (APS)
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.