An illustration of the light-front coupled-cluster method in quantum electrodynamics

S. S. Chabysheva

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A field-theoretic formulation of the exponential-operator technique is applied to a nonperturbative 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 α/2π. The nonperturbative solution, which requires numerical techniques, sums a subset of corrections to all orders in α and incorporates additional physics.

Original languageEnglish (US)
Title of host publicationQCD at WORK 2012 - International Workshop on Quantum Chromodynamics
Subtitle of host publicationTheory and Experiment
Pages194-198
Number of pages5
DOIs
StatePublished - Dec 1 2012
EventInternational Workshop on Quantum Chromodynamics: Theory and Experiment, QCD at WORK 2012 - Lecce, Italy
Duration: Jun 18 2012Jun 21 2012

Publication series

NameAIP Conference Proceedings
Volume1492
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherInternational Workshop on Quantum Chromodynamics: Theory and Experiment, QCD at WORK 2012
CountryItaly
CityLecce
Period6/18/126/21/12

Keywords

  • Pauli-Villars regularization
  • anomalous magnetic moment
  • light-front quantization
  • quantum electrodynamics

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