Lifting shell structures in the dynamically assisted Schwinger effect in periodic fields

The dynamically assisted pair creation (Schwinger effect) is considered for the superposition of two periodic electric fields acting in 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....

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Main Authors: A. Otto, D. Seipt, D. Blaschke, B. Kämpfer, S.A. Smolyansky
Format: Article
Language:English
Published: Elsevier 2015-01-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269314008818
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author A. Otto
D. Seipt
D. Blaschke
B. Kämpfer
S.A. Smolyansky
author_facet A. Otto
D. Seipt
D. Blaschke
B. Kämpfer
S.A. Smolyansky
author_sort A. Otto
collection DOAJ
description The dynamically assisted pair creation (Schwinger effect) is considered for the superposition of two periodic electric fields acting in 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.
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spelling doaj.art-20966ed256494d6eb6a29d9bc3e39bb52022-12-21T22:37:20ZengElsevierPhysics Letters B0370-26932015-01-01740335340Lifting shell structures in the dynamically assisted Schwinger effect in periodic fieldsA. Otto0D. Seipt1D. Blaschke2B. Kämpfer3S.A. Smolyansky4Institute of Radiation Physics, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany; Institut für Theoretische Physik, Technische Universität Dresden, Zellescher Weg 17, 01062 Dresden, Germany; Corresponding author.Helmholtz-Institut Jena, Fröbelstieg 3, 07743 Jena, GermanyGroup of Elementary Particle Theory, Institute for Theoretical Physics, University of Wroclaw, pl. M. Borna 9, 50-204 Wroclaw, PolandInstitute of Radiation Physics, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany; Institut für Theoretische Physik, Technische Universität Dresden, Zellescher Weg 17, 01062 Dresden, GermanyDepartment of Physics, Saratov State University, 410071 Saratov, RussiaThe dynamically assisted pair creation (Schwinger effect) is considered for the superposition of two periodic electric fields acting in 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.http://www.sciencedirect.com/science/article/pii/S0370269314008818
spellingShingle A. Otto
D. Seipt
D. Blaschke
B. Kämpfer
S.A. Smolyansky
Lifting shell structures in the dynamically assisted Schwinger effect in periodic fields
Physics Letters B
title Lifting shell structures in the dynamically assisted Schwinger effect in periodic fields
title_full Lifting shell structures in the dynamically assisted Schwinger effect in periodic fields
title_fullStr Lifting shell structures in the dynamically assisted Schwinger effect in periodic fields
title_full_unstemmed Lifting shell structures in the dynamically assisted Schwinger effect in periodic fields
title_short Lifting shell structures in the dynamically assisted Schwinger effect in periodic fields
title_sort lifting shell structures in the dynamically assisted schwinger effect in periodic fields
url http://www.sciencedirect.com/science/article/pii/S0370269314008818
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AT bkampfer liftingshellstructuresinthedynamicallyassistedschwingereffectinperiodicfields
AT sasmolyansky liftingshellstructuresinthedynamicallyassistedschwingereffectinperiodicfields