Fast and slow magnetosonic waves in two-dimensional spin-1/2 quantum plasma

Journal Article · Fri Oct 15 00:00:00 EDT 2010 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3493632· OSTI ID:21421251

Mushtaq, A ^[1]; Vladimirov, S V ^[1]

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1. School of Physics, University of Sydney, New South Wales 2006 (Australia)

Using the spin-1/2 resistive quantum magnetohydrodynamics model, linear and nonlinear relations for slow and fast magnetosonic modes are derived. Spin effects are incorporated via spin force and macroscopic spin magnetization current. The plasma resistivity is shown to play a role of dissipation in the system. With the aid of tanh method the traveling wave solution of Kadomstev-Petviashvili-Burgers is obtained. The solution shows a general shock wave profile superposed by a perturbative solitary-wave contribution. The dynamics of fast and slow magnetosonic shock and soliton, respectively, in the presence and absence of dissipation is investigated with respect to electron spin magnetization, quantum diffraction, and plasma statistic. It is found that results obtained from the spin quantum plasmas differ significantly from the nonspin quantum plasmas. The relevance of the present work to dense astrophysical plasmas such as pulsar magnetosphere is pointed out.

• OSTI ID: 21421251
• Journal Information: Physics of Plasmas, Vol. 17, Issue 10; Other Information: DOI: 10.1063/1.3493632; (c) 2010 American Institute of Physics; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
MAGNETOACOUSTIC WAVES
MAGNETOHYDRODYNAMICS
PLASMA SIMULATION
QUANTUM PLASMA
SHOCK WAVES
SOLITONS
SPIN
TWO-DIMENSIONAL CALCULATIONS
ANGULAR MOMENTUM
FLUID MECHANICS
HYDRODYNAMICS
HYDROMAGNETIC WAVES
MECHANICS
PARTICLE PROPERTIES
PLASMA
QUASI PARTICLES
SIMULATION