Sticky islands in stochastic webs and anomalous chaotic cross-field particle transport by E×B electron drift instability

D. Mandal, Y. Elskens, X. Leoncini, N. Lemoine and F. Doveil

Chaos, Solitons & Fractals, 2021, vol. 145, issue C

Abstract: The E×B electron drift instability, present in many plasma devices, is an important agent in cross-field particle transport. In presence of a resulting low frequency electrostatic wave, the motion of a charged particle becomes chaotic and generates a stochastic web in phase space. We define a scaling exponent to characterise transport in phase space and we show that the transport is anomalous, of super-diffusive type. Given the values of the model parameters, the trajectories stick to different kinds of islands in phase space, and their different sticking time power-law statistics generate successive regimes of the super-diffusive transport.

Keywords: Stochastic web; ExB drift instability; Hall thruster; Super-diffusive transport (search for similar items in EconPapers)
Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:145:y:2021:i:c:s0960077921001624

DOI: 10.1016/j.chaos.2021.110810

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