Onset of symmetric plasma turbulence

M S Baptista, I L Caldas, M V A Heller, A A Ferreira

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4 Citations (Scopus)

Abstract

We analyze the electrostatic turbulence in a stationary toroidal magnetoplasma, created by radio-frequency waves, and confined by a toroidal magnetic field. The increase of toroidal magnetic field, leads tol gradients, in the mean plasma radial profiles and to the enhancement of electrostatic turbulence. Another consequence is the emergence of symmetry in the probability distributions of fluctuations and of the time in which they return to a specified reference interval of values. This symmetry as well as scaling laws reported here are typically observed in low-dimensional chaotic dynamical systems. Decreasing the magnetic field breaks the symmetry in the probability distribution; however, it preserves the correlation properties of a few average quantities. (C) 2001 Elsevier Science B.V. All rights reserved.

Original languageEnglish
Pages (from-to)150-162
Number of pages13
JournalPhysica. A, Statistical Mechanics and its Applications
Volume301
Issue number1-4
Early online date9 Oct 2001
DOIs
Publication statusPublished - 1 Dec 2001

Keywords

  • toroidal plasma
  • drift waves
  • recurrence
  • transport

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