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Paper   IPM / Physic / 7202
School of Physics
  Title:   Langmuir Solitons in An Adiabatic Wave-Particle Interaction
  Author(s):  H. Abbasi
  Status:   In Proceedings
  Proceeding: Autumn College on Plasma Physics, 8 Oct.-2 Nov. 2001, The Abdus Salam International Center for Theoretical Physics, Miramare, Trieste, Italy
  No.:  0
  Year:  2001
  Supported by:  IPM
In this paper, we present the solution which describe coupled stationary, one dimensional propagation of a nonlinear electron wave and a nonlinear ion wave including the effect of trapped electrons. It is shown that in the scales much larger than Debye length, trapped electrons cause soliton to be supersonic. Moreover, trapped electrons prevent the localization of high-frequency waves and therefore solitons have larger width.

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