Light-front two-dimensional QED: Self-field approach

Details Light-front two-dimensional QED: Self-field approach Light-front two-dimensional QED: Self-field approach

1998-06-05

arxiv.org/abs/hep-th/9806045v1

Phys.Rev. D58 (1998) 125008

Physics

High Energy Physics

High Energy Physics - Theory

LATEX file, 3 figures, 17 pp

Scientific paper

10.1103/PhysRevD.58.125008

The self-field approach to quantum electrodynamics (QED) is used to study the bound state problem in light-front two-dimensional QED with massive matter fields. A composite matter field describing bound states is introduced and the relativistic bound state equation for the composite field including a self-potential is obtained. The Hamiltonian form of the bound state equation in terms of the invariant mass squared operator is given. The eigenvalue problem of this operator is solved for a fixed value of the self-potential, the corresponding eigenfunctions and the mass spectrum are found. In the case of massless matter fields, there are no self-field terms in the bound state equation, and the invariant mass spectrum can be evaluated explicitly. Possible ways of deriving more complete information about the bound state spectrum are briefly discussed.

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