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Träfflista för sökning "swepub ;lar1:(umu);pers:(Stenflo Lennart);pers:(Lundin Joakim 1978);pers:(Stenflo Lennart 1939)"

Search: swepub > Umeå University > Stenflo Lennart > Lundin Joakim 1978 > Stenflo Lennart 1939

  • Result 1-2 of 2
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1.
  • Lundin, Joakim, 1978-, et al. (author)
  • Circularly polarized waves in a plasma with vacuum polarization effects
  • 2007
  • In: Physics of Plasmas. - : American Institute of Physics. - 1070-664X .- 1089-7674. ; 14:6, s. 064503-3 sidor
  • Journal article (peer-reviewed)abstract
    • The theory for large amplitude circularly polarized waves propagating along an external magnetic field is extended in order to also include vacuum polarization effects. A general dispersion relation, which unites previous results, is derived.
  •  
2.
  • Marklund, Mattias, 1970-, et al. (author)
  • Nonlinear propagation of partially coherent dispersive Alfvén waves.
  • 2006
  • In: Physica Scripta. - : INSTITUTE OF PHYSICS PUBLISHING. - 0031-8949 .- 1402-4896. ; 74:3, s. 373-376
  • Journal article (peer-reviewed)abstract
    • The effects of partial coherence on the propagation of dispersive Alfvén waves in a magnetoplasma are investigated. In particular, nonlinear interactions between dispersive Alfvén waves and ion-acoustic perturbations are considered by means of a Wigner formalism. A set of governing equations consisting of a kinetic equation for dispersive Alfvén waves coupled nonlinearly to a ponderomotive force driven ion-acoustic wave equation is obtained. The governing nonlinear equations are used to derive a nonlinear dispersion relation that is appropriate for investigating the modulational instability of broadband Alfvén wavepackets. The spectral broadening of the Alfvén waves gives rise to new regimes for the growth rate of the modulational instability.
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  • Result 1-2 of 2
Type of publication
journal article (2)
Type of content
peer-reviewed (2)
Author/Editor
Marklund, Mattias, 1 ... (2)
Shukla, Padma K (2)
Stenflo, Lennart... (2)Undo refine
Lundin, Joakim, ... (2)Undo refine
Brodin, Gert, 1963- (1)
University
Umeå University  (2)Undo refine
Language
English (2)
Research subject (UKÄ/SCB)
Natural sciences (1)

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