Artículo
Impact of the Eulerian chaos of magnetic field lines in magnetic reconnection
Firpo, M. C.; Ettoumi, W.; Lifschitz, Agustin Federico
; Retinò, A.; Farengo, Ricardo; Ferrari, Hugo Emilio
; Garcia Martinez, Pablo Luis
Fecha de publicación:
12/2016
Editorial:
American Institute of Physics
Revista:
Physics Of Plasmas
ISSN:
1070-664X
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Stochasticity is an ingredient that may allow the breaking of the frozen-in law in the reconnection process. It will first be argued that the non-ideal effects may be considered as an implicit way to introduce stochasticity. Yet there also exists an explicit stochasticity that does not require the invocation of non-ideal effects. This comes from the spatial (or Eulerian) chaos of magnetic field lines that can show up only in a truly three-dimensional description of magnetic reconnection since the two-dimensional models impose the integrability of the magnetic field lines. Some implications of this magnetic braiding, such as the increased particle finite-time Lyapunov exponents and increased acceleration of charged particles, are discussed in the frame of tokamak sawteeth that forms a laboratory prototype of spontaneous magnetic reconnection. A justification for an increased reconnection rate with chaotic vs. the integrable magnetic field lines is proposed. Moreover, in 3D, the Eulerian chaos of the magnetic field lines may coexist with the Eulerian chaos of velocity field lines, that is more commonly named the turbulence.
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Articulos(CCT - PATAGONIA NORTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Citación
Firpo, M. C.; Ettoumi, W.; Lifschitz, Agustin Federico; Retinò, A.; Farengo, Ricardo; et al.; Impact of the Eulerian chaos of magnetic field lines in magnetic reconnection; American Institute of Physics; Physics Of Plasmas; 23; 12; 12-2016; 122905-1/9
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