On the Existence of Quantum Electrodynamics
- 21 November 1988
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 61 (21), 2416-2419
- https://doi.org/10.1103/physrevlett.61.2416
Abstract
We explain from an intuitive renormalization-group perspective how "collapse of the wave function" in quenched quantum electrodynamics leads to coupling-constant renormalization and an interacting ultraviolet stable fixed point. A diagrammatic expansion in , the number of fermion species, suggests that vacuum polarization leads the fixed point of the quenched model stable, and computer-simulation data support this possibility. The scaling region of the quenched lattice model is discovered numerically.
Keywords
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