The Fermionic Propagator in an Intense Background

Abstract

New results for the fermion propagator in a laser background are presented. We show that the all orders electron propagator can be written in a compact and appealing form as a sum of sideband poles with a matrix wave function renormalisation and a matrix valued mass shift. This last result is essential in the fermionic theory if we are to maintain that both the mass and its square pick up a correction only at order e^2. A perturbative verification of our results is carried out.

18 pages, 2 figures, minor amendments and references added. Version to appear in Physical Review D

References in corpus (5)

• Finite size effects in stimulated laser pair production
• Trident pair production in strong laser pulses
• Nonlinear double Compton scattering in the full quantum regime
• Propagation in an intense background
• Sideband Mixing in Intense Laser Backgrounds