Spontaneous symmetry breaking in scale invariant quantum electrodynamics
Abstract
Quantum electrodynamics is studied analytically in a quenched, planar approximation in four dimensions. At sufficiently strong coupling, chiral symmetry is broken spontaneously and the corresponding pseudoscalar Goldstone boson is observed. This phase of the theory is governed by a novel ultraviolet fixed point which requires the mixing of four-fermion interactions with the electrodynamic interactions.
- Publication:
-
Nuclear Physics B
- Pub Date:
- September 1986
- DOI:
- 10.1016/0550-3213(86)90382-2
- Bibcode:
- 1986NuPhB.273..649L