Self-organization of dissipative and coherent vortex structures in non-equilibrium magnetized two-dimensional plasmas

TL;DR

This study uses microscopic Langevin dynamics simulations to explore how non-equilibrium processes in magnetized 2D plasmas lead to the spontaneous formation of ordered vortex structures, revealing unique non-equilibrium properties.

Contribution

It demonstrates the microscopic mechanisms behind vortex self-organization in non-equilibrium magnetized plasmas, highlighting the role of recombination and generation processes.

Findings

Formation of ordered vortex states in non-equilibrium plasmas

Distinct binary distribution properties from equilibrium

Unusual Coulomb energy behavior in non-equilibrium conditions

Abstract

The properties of non-equilibrium magnetized plasmas confined in planar geometry are studied on the basis of the first principle microscopic Langevin dynamics computer simulations. The non-equilibrium state of plasmas is maintained due to the recombination and generation of charges.The intrinsic microscopic structure of non-equilibrium steady-state magnetized plasmas, in particular, the inter-particle correlations and self-organization of vortex structures are examined. The simulations have been performed for a wide range of parameters including strong plasma coupling, high charge recombination and generation rates, and intense magnetic field. As is shown in simulations, the non-equilibrium recombination and generation processes trigger the formation of ordered dissipative or coherent drift vortex states in 2D plasmas with distinctly spatially separated components, which are far from thermal equilibrium. This is evident from the unusual properties of binary distributions and behavior of the Coulomb energy of the system, which turn out to be quite different from the ones typical for the equilibrium state of plasmas under the same conditions.