Flow equations for QED in the light front dynamics
High Energy Physics - Theory
2009-10-30 v3
Abstract
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.
Cite
@article{arxiv.hep-th/9710233,
title = {Flow equations for QED in the light front dynamics},
author = {E. L. Gubankova and F. Wegner},
journal= {arXiv preprint arXiv:hep-th/9710233},
year = {2009}
}
Comments
15 pages, Latex, 3 pictures, Submitted to Phys.Rev.D