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Title: Arbitrary amplitude magnetosonic solitary and shock structures in spin quantum plasma

A nonlinear analysis is carried out for the arbitrary amplitude magnetosonic solitary and shock structures in spin quantum plasmas. A quantum magnetohydrodynamic model is used to describe the magnetosonic quantum plasma with the Bohm potential and the pressure like spin force for electrons. Analytical calculations are used to simplify the basic equations, which are then studied numerically. It is shown that the magnetic diffusivity is responsible for dissipation, which causes the shock-like structures rather than the soliton structures. Additionally, wave speed, Zeeman energy, and Bohm potential are found to have significant impact on the shock wave structures.
Authors:
 [1] ; ; ;  [2]
  1. Department of Mathematics, West Bengal State University, Barasat, Kolkata-700126 (India)
  2. Department of Instrumentation Science, Jadavpur University, Kolkata-700 032 (India)
Publication Date:
OSTI Identifier:
22218418
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 20; Journal Issue: 11; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ELECTRONS; MAGNETOACOUSTIC WAVES; NONLINEAR PROBLEMS; NUMERICAL ANALYSIS; PLASMA POTENTIAL; PLASMA PRESSURE; PLASMA WAVES; QUANTUM PLASMA; SHOCK WAVES; SOLITONS; SPIN; ZEEMAN EFFECT