Magnetic field stochasticity in the presence of current sheets (Articolo in rivista)

Type
Label
  • Magnetic field stochasticity in the presence of current sheets (Articolo in rivista) (literal)
Anno
  • 1999-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.873549 (literal)
Alternative label
  • S. Bulanov (1), D. Farina (2), R. Pozzoli (3) (1999)
    Magnetic field stochasticity in the presence of current sheets
    in Physics of plasmas
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • S. Bulanov (1), D. Farina (2), R. Pozzoli (3) (literal)
Pagina inizio
  • 3097 (literal)
Pagina fine
  • 3101 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://pop.aip.org/resource/1/phpaen/v6/i8/p3097_s1 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 6 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 8 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (1) General Physics Institute of Russian Academy of Sciences, Vavilov Street, 38, 117942 Moscow, Russia; (2) Istituto di Fisica del Plasma, Consiglio Nazionale delle Ricerche, EURATOM-ENEA-CNR Association, via Cozzi 53, 20125 Milano, Italy; (3) Istituto Nazionale di Fisica della Materia, Dipartimento di Fisica, Università di Milano, via Celoria 16, 20133 Milano, Italy (literal)
Titolo
  • Magnetic field stochasticity in the presence of current sheets (literal)
Abstract
  • The stochasticity of field lines around a current sheet induced by static magnetic perturbations is investigated. By means of Hamiltonian analysis, it is pointed out that the system exhibits two different chaotic regimes, depending on the wavelength of the perturbation: At short wavelengths (shorter than the length of the separatrix), resonant processes determine the onset of stochasticity and can be modeled by a simple mapping; at long wavelengths of the perturbation, stochasticity is mainly due to the breaking of adiabatic invariants. (literal)
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