Lifting shell structures in the dynamically assisted Schwinger effect in periodic fields
High Energy Physics - Phenomenology
2014-12-30 v1
Abstract
The dynamically assisted pair creation (Schwinger effect) is considered for the superposition of two periodic electric fields acting a finite time interval. We find a strong enhancement by orders of magnitude caused by a weak field with a frequency being a multitude of the strong-field frequency. The strong low-frequency field leads to shell structures which are lifted by the weaker high-frequency field. The resonance type amplification refers to a new, monotonously increasing mode, often hidden in some strong oscillatory transient background which disappears during the smoothly switching off the background fields, thus leaving a pronounced residual shell structure in phase space.
Cite
@article{arxiv.1412.0890,
title = {Lifting shell structures in the dynamically assisted Schwinger effect in periodic fields},
author = {Andreas Otto and Daniel Seipt and David Blaschke and Burkhard Kampfer and Stanislav Alexandrovich Smolyansky},
journal= {arXiv preprint arXiv:1412.0890},
year = {2014}
}