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IOP Publishing, Chinese Physics B, 5(32), p. 054101, 2023

DOI: 10.1088/1674-1056/acb911

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Particle-in-cell simulations of low-β magnetic reconnection driven by laser interaction with a capacitor–coil target

Journal article published in 2023 by Xiaoxia Yuan, Cangtao Zhou, Hua Zhang, Ran Li, Yongli Ping, Jiayong Zhong
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

The dynamics of low-β magnetic reconnection (MR) driven by laser interaction with a capacitor–coil target are reexamined by simulations in this paper. We compare two cases MR and non-MR (also referred as AP-case and P-case standing for the anti-parallel and parallel magnetic field lines, respectively) to distinguish the different characteristics between them. We find that only in the AP-case the reconnection electric field shows up around the X line and the electron jet is directed toward the X line. The quadruple magnetic fields exist in both cases, however, they distribute in the current sheet area in the AP-case, and out of the squeezing area in the P-case, because electrons are demagnetized in the electron diffusion region in the MR process, which is absent in the P-case. The electron acceleration is dominant by the Fermi-like mechanism before the MR process, and by the reconnection electric field when the MR occurs. A power-law electron energy spectrum with an index of 1.8 is found in the AP-case. This work proves the significant potential of this experimental platform to be applied in the studies of low-β astronomy phenomena.