Abstract

We present the results of theoretical studies of formation and evolution of the current sheet in a colliosionless plasma during magnetic reconnection in relativistic limit. Relativistic magnetic reconnection is driven by parallel laser pulses interacting with underdense plasma target. Annihilation of laser created magnetic field of opposite polarity generates strong non-stationary electric field formed in between the region with opposite polarity magnetic field accelerating charged particles within the current sheet. This laser-plasma target configuration is discussed in regard with the laboratory modeling of charged particle acceleration and gamma flash generation in astrophysics. We present the results of 3-dimensional kinetic simulations and theoretical studies on the formation and evolution of the current sheet in a collisionless plasma during magnetic field annihilation in the ultra-relativistic limit. Annihilation of oppositively directed magnetic fields driven by two laser pulses interacting with underdense plasma target is accompanied by an electromagnetic burst generation. The induced strong non-stationary longitudinal electric field accelerates charged particles within the current sheet. Properties of the laser-plasma target configuration are discussed in the context of the laboratory modeling for charged particle acceleration and gamma flash generation in astrophysics.

Details

Title
Electromagnetic Burst Generation during Annihilation of Magnetic Field in Relativistic Laser-Plasma Interaction
Author
Gu, Y J 1   VIAFID ORCID Logo  ; Pegoraro, F 2 ; Sasorov, P V 3 ; Golovin, D 4 ; Yogo, A 5 ; Korn, G 6 ; Bulanov, S V 7 

1  Institute of Physics of the ASCR, ELI-Beamlines, Prague, Czech Republic; Institute of Plasma Physics of the CAS, Prague, Czech Republic 
2  Enrico Fermi Department of Physics, University of Pisa, Pisa, Italy; National Research Council, National Institute of Optics, (CNR/INO), Pisa, Italy 
3  Institute of Physics of the ASCR, ELI-Beamlines, Prague, Czech Republic; Keldysh Institute of Applied Mathematics of the Russian Academy of Sciences, Moscow, Russia 
4  Institute of Laser Engineering, Osaka Univesity, Osaka, Japan 
5  Institute of Laser Engineering, Osaka Univesity, Osaka, Japan; PRESTO, Japan Science and Technology Agency, Kawaguchi, Saitama, Japan 
6  Institute of Physics of the ASCR, ELI-Beamlines, Prague, Czech Republic 
7  Institute of Physics of the ASCR, ELI-Beamlines, Prague, Czech Republic; Kansai Photon Research Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa-shi, Kyoto, Japan; Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia 
Pages
1-10
Publication year
2019
Publication date
Dec 2019
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1038/s41598-019-55976-0
ProQuest document ID
2328717096
Copyright
© 2019. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.