Transition to super-diffusive transport in turbulent plasmas
Plasma Physics
2023-09-07 v1 Statistical Mechanics
Chaotic Dynamics
Abstract
We investigate the motion of charged particles in a turbulent electrostatic potential using guiding-center theory. By increasing the Larmor radius, the dynamics exhibit close-to-ballistic transport properties. The transition from diffusive to ballistic transport is analyzed using nonlinear dynamics. It is found that twistless invariant tori in the guiding-center dynamics are responsible for this transition, drastically affecting transport properties of charged particles.
Cite
@article{arxiv.2309.02461,
title = {Transition to super-diffusive transport in turbulent plasmas},
author = {Matteo Stanzani and Filippo Arlotti and Guido Ciraolo and Xavier Garbet and Cristel Chandre},
journal= {arXiv preprint arXiv:2309.02461},
year = {2023}
}