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Article Dans Une Revue Chaos, Solitons & Fractals Année : 2021

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

Résumé

The ExB 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.
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Dates et versions

hal-02893705 , version 1 (15-03-2023)

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Paternité - Pas d'utilisation commerciale

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Citer

D. Mandal, Y. Elskens, X. Leoncini, Nicolas Lemoine, F. Doveil. Sticky islands in stochastic webs and anomalous chaotic cross-field particle transport by ExB electron drift instability. Chaos, Solitons & Fractals, 2021, 145, pp.110810. ⟨10.1016/j.chaos.2021.110810⟩. ⟨hal-02893705⟩
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