Lagrangian description of nonlinear dust-ion acoustic waves in dusty plasmas

  • I. KourakisEmail author
  • P. K. Shukla


An analytical model is presented for the description of nonlinear dust-ion-acoustic waves propagating in an unmagnetized, collisionless, three component plasma composed of electrons, ions and inertial dust grains. The formulation relies on a Lagrangian approach of the plasma fluid model. The modulational stability of the wave amplitude is investigated. Different types of localized envelope electrostatic excitations are shown to exist.


Dust Acoustic Wave Wave Amplitude Dusty Plasma Fluid Model 
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© Springer-Verlag Berlin/Heidelberg 2004

Authors and Affiliations

  1. 1.Institut für Theoretische Physik IVFakultät für Physik und Astronomie, Ruhr-Universität BochumBochumGermany

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