Title :
Reflection of modified Korteweg-de Vries solitons in a plasma having negative ions
Author :
Chauhan, Sarvesh S. ; Dahiya, Raj P. ; Yi, Seungjun ; Lonngren, Karl E.
Author_Institution :
Centre for Energy Studies, Indian Inst. of Technol., New Delhi, India
fDate :
12/1/1997 12:00:00 AM
Abstract :
The variable coefficient modified Korteweg-de Vries (mKdV) equations for incident and reflected solitons are derived and solved to study the reflection of compressive and rarefactive ion acoustic solitons at the critical density in an inhomogeneous negative ion plasma. The polarity of the incident compressive and rarefactive solitons is not altered during the reflection process. Increasing the density gradient reinforces the reflection of both compressive and rarefactive mKdV solitons, whereas enhancement of the unperturbed plasma density weakens the reflection
Keywords :
Korteweg-de Vries equation; plasma density; plasma ion acoustic waves; plasma nonlinear waves; reflection; solitons; compressive ion acoustic solitons; critical density; density gradient; inhomogeneous negative ion plasma; modified Korteweg-de Vries solitons; negative ions; plasma; rarefactive ion acoustic solitons; reflected solitons; unperturbed plasma density; variable coefficient mKdV equations; Acoustic reflection; Astronomy; Cities and towns; Nonlinear equations; Physics; Plasma density; Plasma sheaths; Plasma temperature; Plasma waves; Solitons;
Journal_Title :
Plasma Science, IEEE Transactions on
