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arXiv · 1208.6080

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

S. S. Chabysheva
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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 \alpha/2\pi. The nonperturbative solution, which requires numerical techniques, sums a subset of corrections to all orders in \alpha\ and incorporates additional physics.

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S. S. Chabysheva. 2012-08-30. An illustration of the light-front coupled-cluster method in quantum electrodynamics. https://doi.org/10.1063/1.4763516

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