Optimized multibeam configuration for observation of QED cascades

QED cascades in intense electromagnetic field can occur if the dynamical quantum parameter \(\chi\) of a seed electron, which in Compton units coincides with the electron proper acceleration, attains the order of unity. We derive general expression for \(\chi\) of an initially slow electron in an ar...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2015-05
Main Authors: Gelfer, E G, Mironov, A A, Fedotov, A M, Bashmakov, V F, Nerush, E N, Kostyukov, I Y, Narozhny, N B
Format: Article
Language:English
Subjects:
Acceleration
Carrier frequencies
Cascades
Configurations
Electromagnetic fields
Electromagnetism
Electrons
Laser beams
Lasers
Parameters
Quantum electrodynamics
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:QED cascades in intense electromagnetic field can occur if the dynamical quantum parameter \(\chi\) of a seed electron, which in Compton units coincides with the electron proper acceleration, attains the order of unity. We derive general expression for \(\chi\) of an initially slow electron in an arbitrary electromagnetic field for a time range \(t\ll 1/\omega\), where \(\omega\) is the field carrier frequency. Using this formula, we consider a special field configuration of multiple colliding focused laser beams and optimize it to provide cascade development at laser power below \(10\) PW and intensity of the order of \(10^{23}\)W/cm\(^2\). Such parameters of the beams will be obtained with a new generation of laser facilities, particularly the ELI Beamlines, in the coming years.
ISSN:2331-8422
DOI:10.48550/arxiv.1505.06680