Modulational instability of ion-acoustic waves in a plasma consisting of warm ions and non-thermal electrons

✍ Scribed by Xue Jukui

• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 106 KB
• Volume: 18
• Category: Article
• ISSN: 0960-0779
• DOI: 10.1016/s0960-0779(03)00056-0

✦ Synopsis

Using the standard reductive perturbation technique, a nonlinear Schr€ o odinger equation is derived to study the modulational instability of finite amplitude ion-acoustic waves (IAW) in an unmagnetized plasma consisting of warm adiabatic ions and non-thermal electrons. It is found that the presence of non-thermal electrons modifies the nature of IAW instability and the solitary structures. The effects of non-thermally distributed electrons on the modulational instability and IAW structures are investigated in detail.