Field ionization rate for PIC codes
Plasma Physics
2021-10-06 v1 Atomic Physics
Optics
Abstract
An improved formula is proposed for field ionization rate covering tunnel and barrier suppression regime. In contrast to the previous formula obtained recently in [I. Yu. Kostyukov and A. A. Golovanov, Phys. Rev. A 98, 043407 (2018)], it more accurately describes the transitional regime (between the tunnel regime and the barrier suppression regime). In the proposed approximation, the rate is mainly governed by two parameters: by the atom ionization potentials and by the external electric field, which makes it perfectly suitable for particle-in-cell (PIC) codes dedicated to modeling of intense laser-matter interactions.
Keywords
Cite
@article{arxiv.1906.01358,
title = {Field ionization rate for PIC codes},
author = {I. Yu. Kostyukov and A. A. Golovanov},
journal= {arXiv preprint arXiv:1906.01358},
year = {2021}
}