Resummation of background-collinear corrections in strong field QED
James P. Edwards, Anton Ilderton
Abstract
Scattering processes in laser backgrounds are degenerate to the emission of unobservable photons collinear with the laser. We identify processes and observables for which such degeneracies factorize and exponentiate, obtaining the leading-order intensity dependence of these inclusive observables at high laser intensity, correct to all orders in the fine-structure constant (all loops, all emissions). The results show an exponential intensity dependence distinct from that predicted by the Narozhny-Ritus conjecture on the high-intensity behavior of quantum electrodynamics in strong fields.
Topics & Concepts
ResummationPhysicsField (mathematics)Particle physicsQuantum electrodynamicsMathematicsQuantum chromodynamicsPure mathematicsLaser-Plasma Interactions and DiagnosticsParticle Accelerators and Free-Electron LasersHigh-pressure geophysics and materials