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The $\bf {E × B}$ staircase of magnetised plasmas

Abstract : We show that a class of near-marginal and low-collisional magnetised plasmas naturally evolve into a globally organised state dubbed the $\bf {E × B}$ staircase’. A key signature of this self-organised state is the containment of avalanche activity, detrimental for confinement, by a series of microbarriers for transport, the staircase steps, beneficial for confinement. Conditions for existence of the $\bf {E × B}$ staircase, impact on transport and confinement and robustness in parameter space are discussed
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Contributor : Guilhem Dif-Pradalier <>
Submitted on : Tuesday, November 28, 2017 - 10:19:03 AM
Last modification on : Monday, October 1, 2018 - 4:03:19 PM

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Guilhem Dif-Pradalier, G. Hornung, X. Garbet, Ph. Ghendrih, V. Grandgirard, et al.. The $\bf {E × B}$ staircase of magnetised plasmas. Nuclear Fusion, IOP Publishing, 2017, 57, pp.066026. ⟨10.1088/1741-4326/aa6873⟩. ⟨cea-01649981⟩

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