Nonlinear localized structure in dusty plasma

The nonlinear effect of ponderomotive force of high-frequency ion motion on the low-frequency motion of ions coupling with the dust density fluctuatio n is investigated. The nonlinear localized structure described by Zakharov equations and nonlinear Schrodinger equation in dusty plasma are obtained. Envelope solitons for high-frequency ion motion and the dust density cavito ns are also obtained and discussed.