Charge variation induced nonlinear wave damping in a nonthermal plasma

Abstract

A theoretical attempt is made to investigate the charge variation induced nonlinear wave damping in a dusty plasma with nonthermal electrons. Contrary to what has been already reported in the dusty plasma literature, our results show that faster waves suffer stronger anomalous damping than slower ones. As the nonthermal character of the plasma increases, the strength of the anomalous dissipation becomes more important and causes the fast solitary wave amplitude to decay more rapidly. The results complement and provide new insight into the previous work on this problem.