Application of Coherent State Approach for the cancellation of Infrared divergences to all orders in LFQED

Abstract

We sketch an all order proof of cancellation of infrared (IR) divergences in Light Front Quantum Electrodynamics (LFQED) using a coherent state formalism. In this talk, it has been shown that the true IR divergences in fermion self energy are eliminated to all orders in a light-front time-ordered perturbative calculation if one uses coherent state basis instead of the usual Fock basis to calculate the Hamiltonian matrix elements.

6 pages, for Proceedings of Light-Cone Conference 2014, May 2014, North Carolina, Raleigh. To appear in Few Body system

References in corpus (3)

• Infra-red Divergences in Light-Front QED and Coherent State Basis
• Fermion Self Energy Correction in Light-Front QED using Coherent State Basis
• Cancellation of Infrared divergences to all orders in LFQED