Scattering in time-dependent basis light-front quantization
Journal article, 2013
We introduce a nonperturbative, first-principles numerical approach for solving time-dependent problems in quantum field theory, using light-front quantization. As a first application we consider QED in a strong background field, and the process of nonlinear Compton scattering in which an electron is excited by the background and emits a photon. We track the evolution of the quantum state as a function of time. Observables, such as the invariant mass of the electron-photon pair, are first checked against results from perturbation theory, for suitable parameters. We then proceed to a test case in the strong background field regime and discuss the various nonperturbative effects revealed by the approach.
formulation
plane electromagnetic wave
constant field
quantum-field theory
schrodinger-equation
shell-model
cone quantization
one space
qcd
electrodynamics
Author
X. B. Zhao
Antony Ilderton
Chalmers, Applied Physics, Condensed Matter Theory
Pieter Maris
J. P. Vary
Physical Review D - Particles, Fields, Gravitation and Cosmology
24700010 (ISSN) 24700029 (eISSN)
Vol. 88 6Subject Categories
Astronomy, Astrophysics and Cosmology
DOI
10.1103/PhysRevD.88.065014