Scientific Results

Electromagnetic Burst Generation during Annihilation of Magnetic Field in Relativistic Laser-Plasma Interaction

Year: 2019

Authors: GU YK., Pegoraro F., Sasorov PV., Golovin D., Yogo A., Korn G., Bulanov SV.

Autors Affiliation: ELI Beamli Nes, Inst Phys ASCR, Na Slovance 2, Prague 18221, Czech Republic; CAS, Inst Plasma Phys, Za Slovankou 1782-3, Prague 18200, Czech Republic; Univ Pisa, Enrico Fermi Dept Phys, Pisa, Italy; CNR INO, Natl Res Council, Natl Inst Opt, Pisa, Italy; Russian Acad Sci, Keldysh Inst Appl Math, Miusskaya Ploshchad 4, Moscow 125047, Russia

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.

Journal/Review: SCIENTIFIC REPORTS

Volume: 9      Pages from: 19462-1  to: 19462-10

KeyWords: GAMMA-RAY FLARES; LINE RECONNECTION; ACCELERATION
DOI: 10.1038/s41598-019-55976-0

Citations: 4
data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2021-12-05
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