A new mode and its interaction through ponderomotive force in electron-positron-ion plasmas
- Theoretical Plasma Physics Division, PINSTECH, P. O. Nilore, Islamabad (Pakistan)
A new mode is found in e-p-i plasma in the presence of density and temperature difference of lighter particles. The electron beam induced Cherenkov instability condition for the excitation of positron sound wave is obtained for the system under consideration. Zakharov's equation with sign modification due to negative Ponderomotive pressure is obtained. Nonlinear Schroedinger wave equation for the envelope type solitary waves is derived. Both stationary and nonstationary solutions are found and the subsonic and supersonic limits are also discussed. In the stationary case, rarefactive type solitary solution is obtained, whereas the nonstationary case yields the ion acoustic shock like structure solution which is very interesting. The importance of the study with relevance to both laboratory and astrophysical plasmas is pointed out.
- OSTI ID:
- 22047115
- Journal Information:
- Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 12 Vol. 18; ISSN PHPAEN; ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ASTROPHYSICS
ELECTRON BEAMS
ELECTRON TEMPERATURE
ELECTRONS
ION ACOUSTIC WAVES
ION TEMPERATURE
IONS
MATHEMATICAL SOLUTIONS
NONLINEAR PROBLEMS
PLASMA
PLASMA DENSITY
PLASMA INSTABILITY
PONDEROMOTIVE FORCE
POSITRONS
SCHROEDINGER EQUATION
SHOCK WAVES
SOLITONS
SOUND WAVES