Relativistic magnetic reconnection driven by a moderately intense laser interacting with a micro-plasma-slab
Conference contribution, 2017

Magnetic reconnection (MR) in the relativistic regime is generally thought to be responsible for powering rapid bursts of non-thermal radiation in astrophysical events. It is therefore of significant importance to study how the field energy is transferred to the plasma to power the observed emission. However, due to the difficulty in making direct measurements in astrophysical systems or achieving relativistic MR in laboratory environments, the particle acceleration is usually studied using fully kinetic PIC simulations. Here we present a numerical study of a readily available (TW-mJ-class) laser interacting with a micro-scale plasma slab. The simulations show when the electron beams excited on both sides of the slab approach the end of the plasma structure, ultrafast relativistic MR occurs. As the field topology changes, the explosive release of magnetic energy results in emission of relativistic electron jets with cut-off energy \textasciitilde 12 MeV. The proposed novel scenario can be straightforwardly implemented in experiments, and might significantly improve the understanding of fundamental questions such as field dissipation and particle acceleration in relativistic MR.

Author

Longqing Yi

Chalmers, Physics, Subatomic and Plasma Physics

B Shen

A Pukhov

Tünde Fülöp

Chalmers, Physics, Subatomic and Plasma Physics

59th Annual Meeting of the APS Division of Plasma Physics

BO6.00014 -

Driving Forces

Sustainable development

Roots

Basic sciences

Subject Categories

Fusion, Plasma and Space Physics

More information

Created

10/8/2017