Collisionless relaxation in non-neutral plasmas
Statistical Mechanics
2009-11-13 v1 Accelerator Physics
Plasma Physics
Abstract
A theoretical framework is presented which allows to quantitatively predict the final stationary state achieved by a non-neutral plasma during a process of collisionless relaxation. As a specific application, the theory is used to study relaxation of charged-particles beams. It is shown that a fully matched beam relaxes to the Lynden-Bell distribution. However, when a mismatch is present and the beam oscillates, parametric resonances lead to a core-halo phase separation. The approach developed accounts for both the density and the velocity distributions in the final stationary state.
Cite
@article{arxiv.0712.1921,
title = {Collisionless relaxation in non-neutral plasmas},
author = {Yan Levin and Renato Pakter and Tarcisio N. Teles},
journal= {arXiv preprint arXiv:0712.1921},
year = {2009}
}
Comments
Accepted in Phys. Rev. Lett