Flow equations for QED in the light front dynamics

Details Flow equations for QED in the light front dynamics Flow equations for QED in the light front dynamics

1997-10-30

arxiv.org/abs/hep-th/9710233v3

Phys.Rev. D58 (1998) 025012

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, Latex, 3 pictures, Submitted to Phys.Rev.D

Scientific paper

10.1103/PhysRevD.58.025012

The method of flow equations is applied to QED on the light front. Requiring that the partical number conserving terms in the Hamiltonian are considered to be diagonal and the other terms off-diagonal an effective Hamiltonian is obtained which reduces the positronium problem to a two-particle problem, since the particle number violating contributions are eliminated. No infrared divergencies appear. The ultraviolet renormalization can be performed simultaneously.

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