中国物理B ›› 2006, Vol. 15 ›› Issue (1): 156-162.doi: 10.1088/1009-1963/15/1/025
• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇 下一篇
王云良, 周忠祥, 袁承勋, 姜向前, 秦汝虎
Wang Yun-Liang (王云良), Zhou Zhong-Xiang (周忠祥), Yuan Cheng-Xun (袁承勋), Jiang Xiang-Qian (姜向前), Qin Ru-Hu (秦汝虎)
摘要: By using a standard multiple scale method, a Davey--Stewartson (DS) equation has been derived and also applied to a multi-dimensional analytical investigation on the interaction of an ultra-intense laser pulse with a cold unmagnetized transparent electron-ion plasma. The regions of instability are found by considering the modulation instability of a plane wave solution of the DS equation. The DS equation is just of the Davey--Stewartson 1 (DS1) type and admits a dromion solution, i.e. a two-dimensional (2D) dromion soliton decaying exponentially in all spatial directions. A 2D relativistic electromagnetic dromion-like soliton (2D REDLS) is derived for a vector potential.
中图分类号: (Solitons; BGK modes)