1998/06/19 by Michele Morara, Roberto Soldati · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Quantum Chromodynamics and Particle Interactions #Quantum Electrodynamics and Casimir Effect #hep-th
paper · pdf · doi:10.1103/physrevd.58.105011
published as Phys.Rev. D58 (1998) 105011 · PlainTeX, 29 pages, 5 Postscript figures
arxiv created 1998/06/19 · openalex publication_date 1998/10/08 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A new light-front formulation of QED is developed, within the framework of standard perturbation theory, in which x+ plays the role of the evolution parameter and the gauge choice is A+=0 (light-front ``temporal'' gauge). It is shown that this formulation leads to the Mandelstam-Leibbrandt causal prescription for the noncovariant singularities in the photon propagator. Furthermore, it is proved that the dimensionally regularized one loop off-shell amplitudes exactly coincide with the correct ones, as computed within the standard approach using ordinary space-time coordinates.