Michael Rudolph
THEORETICAL PHYSICS • DISCRETE MATHEMATICS
Functional integral of QED in terms of gauge-invariant quantities

J. Kijowski, G. Rudolph, M. Rudolph

Lett. Math. Phys. 33: 139-146, 1995

Abstract

We reduce the functional integral of quantum electrodynamics to an integral containing only local gauge invariant quantities. The set of (bosonic) invariants contains bilinear combinations of the spinor field and a real-valued covector field.