Modified Korteweg--deVries solitons in a warm plasma with negative ions

Journal Article · Thu Mar 01 00:00:00 EST 1990 · Physics of Fluids B; (USA)

DOI:https://doi.org/10.1063/1.859302· OSTI ID:7166013

Kalita, B.C. ^[1]

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1. (Department of Mathematics, Gauhati University, Gauhati 781014 (Assam), India (IN)) Kalita, M.K. (Institute of Advanced Study in Science and Technology, Assam Science Society, Gauhati 781001, (India))

The propagation of ion-acoustic solitons in a warm plasma in the presence of negative ions has been investigated theoretically through the modified Korteweg--deVries (KdV) equation. In the case of the first-order velocity perturbation of the positive ions bearing a constant ratio to that of the negative ions, the existence of both compressive and rarefactive solitons at different critical densities for different temperature ratios has been established when the mass ratio is greater than unity. It is also demonstrated in this case that no modified KdV soliton exists at the critical density in a warm plasma with negative ions when the mass ratio is less than unity.

• OSTI ID: 7166013
• Journal Information: Physics of Fluids B; (USA), Vol. 2:3; ISSN 0899-8221
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
PLASMA
SOLITONS
ANIONS
ELECTRON TEMPERATURE
ION ACOUSTIC WAVES
KORTEWEG-DE VRIES EQUATION
VELOCITY
CHARGED PARTICLES
DIFFERENTIAL EQUATIONS
EQUATIONS
ION WAVES
IONS
PARTIAL DIFFERENTIAL EQUATIONS
PLASMA WAVES
QUASI PARTICLES
640450* - Fluid Physics- Superfluidity