https://doi.org/10.1140/epjd/e2016-60517-y
Regular Article
Assisted dynamical Schwinger effect: pair production in a pulsed bifrequent field
1 Department of Physics, Saratov State
University, 410026
Saratov, Russia
2 Institute of Radiation
Physics, Helmholtz-Zentrum
Dresden-Rossendorf, 01328
Dresden, Germany
3 Institut für Theoretische Physik,
Technische Universität Dresden, 01062
Dresden, Germany
4 Institute for Theoretical Physics,
University of Wroclaw, 50-204
Wroclaw, Poland
5 Bogoliubov Laboratory for Theoretical
Physics, Joint Institute for Nuclear Research, 141980
Dubna, Russia
6 National Research Nuclear University
(MEPhI), 115409
Moscow, Russia
a e-mail: blaschke@ift.uni.wroc.pl
Received:
15
September
2015
Received in final form:
2
January
2016
Published online:
15
March
2016
Electron-positron pair production by the superposition of two laser pulses with different frequencies and amplitudes is analyzed as a particular realization of the assisted dynamic Schwinger effect. It is demonstrated that, within a non-perturbative kinetic equation framework, an amplification effect is conceivable for certain parameters. When both pulses have wavelengths longer than the Compton wavelength, the residual net density of produced pairs is determined by the resultant field strength. The number of pairs starts to grow rapidly if the wavelength of the high-frequency laser component gets close to the Compton wavelength.
Key words: Ultraintense and Ultra-short Laser Fields
© The Author(s) 2016. This article is published with open access at Springerlink.com
This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
