This Abelian theory possesses a gauge group isomorphic to the circle group.
This Abelian theory possesses a gauge group isomorphic to the circle group. The use of renormalization to remove divergences in this theory was formalized by the same scientist who demonstrated the equivalence of the operator and diagram approaches to this theory in 1949, that man being Freeman Dyson. Early successes for this gauge-invariant quantum field theory include accurate predictions of both the Lamb shift and the electron magnetic moment. At the heart of this theory, charged particles are modeled as interacting by exchanging virtual photons. For ten points, identify this extremely accurate theory that won the 1965 Nobel Prize for Tomonaga, Schwinger, and Feynman.
This Abelian theory possesses a gauge group isomorphic to the circle group.
{q}uantum {e}lectro{d}ynamics