Propagation and oblique collision of electrostatic solitary waves in quantum pair-plasmas

Journal Article · Sun Aug 15 04:00:00 EDT 2010 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3480307· OSTI ID:21432815

Akbari-Moghanjoughi, M ^[1]

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1. Department of Physics, Faculty of Sciences, Azarbaijan University of Tarbiat Moallem, 51745-406 Tabriz (Iran, Islamic Republic of)

Oblique interaction of small but finite-amplitude Korteweg de-Vries-type electrostatic solitary structures is investigated in an unmagnetized three-component pair-plasma in the framework of quantum hydrodynamics model using the extended Poincare-Lighthill-Kuo perturbation method and collision phase-shift was evaluated for different plasma parameters, such as fractional concentration of plasma constituents, quantum diffraction parameter, and collision angle. Based on numerical analysis, it is found that small changes in these parameters significantly affects the collision phase-shifts of interacting solitons. It is also observed that for a given fractional pair-density, a critical value for quantum diffraction parameter separates regions in which propagations of only compression or rarefaction solitary excitations exist. Numerical analysis also reveals that the collision phase-shifts in trajectories of solitons change the sign depending on the critical plasma values H{sub cr} and {theta}{sub cr}.

• OSTI ID: 21432815
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 8 Vol. 17; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COLLISIONS
DIFFERENTIAL EQUATIONS
EQUATIONS
FLUID MECHANICS
HYDRODYNAMICS
KORTEWEG-DE VRIES EQUATION
MATHEMATICS
MECHANICS
NUMERICAL ANALYSIS
PARTIAL DIFFERENTIAL EQUATIONS
PERTURBATION THEORY
PHASE SHIFT
PLASMA
QUANTUM PLASMA
QUASI PARTICLES
SOLITONS
WAVE PROPAGATION