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

par Kourakis, Ioannis ;Shukla, Padma Kant
Référence The European physical journal. D. Atomic, molecular and optical physics, 30, 1, page (97-103)
Publication Publié, 2004-07

Article révisé par les pairs

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Résumé :

An analytical model is presented for the description of nonlinear dust-ion-acoustic waves propa- gating in an unmagnetized, collisionless, three component plasma composed of electrons, ions and inertial v 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.