A field-theoretic formulation of the exponential-operator technique is applied to a Hamiltonian eigenvalue problem in electrodynamics, quantized in light-front coordinates. Specifically, we consider the dressed-electron state, without positron contributions but with an unlimited number of photons, and compute its anomalous magnetic moment. A simple perturbative solution immediately yields the Schwinger result of a/2p. The nonperturbative solution, which requires numerical techniques, sums a subset of corrections to all orders in a and incorporates additional physics.
|Original language||English (US)|
|Journal||Proceedings of Science|
|State||Published - Dec 1 2012|
|Event||6th International Conference on Quarks and Nuclear Physics, QNP 2012 - Palaiseau, Paris, France|
Duration: Apr 16 2012 → Apr 20 2012