Campus Units
Physics and Astronomy
Document Type
Article
Publication Version
Published Version
Publication Date
5-1-2017
Journal or Book Title
Physical Review D
Volume
95
Issue
9
First Page
096012
DOI
10.1103/PhysRevD.95.096012
Abstract
We study the real-time evolution of an electron influenced by intense electromagnetic fields using the time-dependent basis light-front quantization (tBLFQ) framework. We focus on demonstrating the nonperturbative feature of the tBLFQ approach through a realistic application of the strong coupling QED problem, in which the electromagnetic fields are generated by an ultrarelativistic nucleus. We calculate transitions of an electron influenced by such electromagnetic fields and we show agreement with light-front perturbation theory when the atomic number of the nucleus is small. We compare tBLFQ simulations with perturbative calculations for nuclei with different atomic numbers, and obtain the significant higher-order contributions for heavy nuclei. The simulated real-time evolution of the momentum distribution of an electron evolving inside the strong electromagnetic fields exhibits significant nonperturbative corrections compared to light-front perturbation theory calculations. The formalism used in this investigation can be extended to QCD problems in heavy ion collisions and electron ion collisions.
Copyright Owner
American Physical Society
Copyright Date
2017
Language
en
File Format
application/pdf
Recommended Citation
Chen, Guangyao; Zhao, Xingbo; Li, Yang; Tuchin, Kirill; and Vary, James P., "Particle distribution in intense fields in a light-front Hamiltonian approach" (2017). Physics and Astronomy Publications. 467.
https://lib.dr.iastate.edu/physastro_pubs/467
Comments
This article is published as Chen, Guangyao, Xingbo Zhao, Yang Li, Kirill Tuchin, and James P. Vary. "Particle distribution in intense fields in a light-front Hamiltonian approach." Physical Review D 95, no. 9 (2017): 096012. DOI: 10.1103/PhysRevD.95.096012. Posted with permission.