Parametric studies of nonlinear magnetosonic waves in two-dimensional quantum magnetoplasmas

Mushtaq, A.; Qamar, A.
February 2009
Physics of Plasmas;Feb2009, Vol. 16 Issue 2, pN.PAG
Academic Journal
Using the effective one fluid quantum magnetohydrodynamic (QMHD) model, magnetosonic waves propagating obliquely to an external magnetic field are studied in an electron-ion (e-i) Fermi plasma. In the linear approximation, the effect of quantum corrections on the fast and slow magnetosonic waves are discussed. It is shown that the system of QMHD equations admit the Kadomstev–Petviashvilli soliton due to the balance between nonlinearity and dispersion caused by the obliqueness and quantum diffraction effects. It is observed that for both modes, the angle θ, the electron quantum diffraction, and statistic effects modify the shape of the solitary structure. It is also found that the results obtained for the quantum plasma differ significantly from the classical e-i plasmas.


Related Articles

  • The Frequency of Nonlinear Plasma Waves. Kichigin, G. // Radiophysics & Quantum Electronics;Jun2005, Vol. 48 Issue 6, p447 

    We study steady-state plane nonlinear plasma waves in a cold collisionless plasma in the absence of a magnetic field. The main conclusion following from the performed analysis is that allowance for the motion of the ion component of the plasma is of fundamental importance when studying nonlinear...

  • Ion thermal double layers in a pair-ion warm magnetized plasma containing charged dust impurities. El-Labany, S. K.; El-Bedwehy, N. A.; El-Shamy, E. F. // Physics of Plasmas;Jun2009, Vol. 16 Issue 6, p063706 

    In this paper the formation and the dynamics of ion thermal double layers (ITDLs) in a magnetized plasma, composed of positive and negative ions as well as a fraction of stationary charged (positive or negative) dust impurities have been studied. Using plasma hydrodynamics and Poisson equations...

  • Dust grain oscillations in two-dimensional hexagonal dusty plasma crystals in the presence of a magnetic field. Farokhi, B.; Shahmansouri, M.; Shukla, P. K. // Physics of Plasmas;Jun2009, Vol. 16 Issue 6, p063703 

    The influence of a constant magnetic field on the propagation of dust-lattice waves in a two-dimensional hexagonal strongly coupled dusty plasma crystal is considered. The expression for the wave dispersion relation clearly shows that high- and low-frequency dust lattice vibrations exist as a...

  • Three-dimensional evolution of magnetic and velocity shear driven instabilities in a compressible magnetized jet. Bettarini, Lapo; Landi, Simone; Velli, Marco; Londrillo, Pasquale // Physics of Plasmas;Jun2009, Vol. 16 Issue 6, p062302 

    The problem of three-dimensional combined magnetic and velocity shear driven instabilities of a compressible magnetized jet modeled as a plane neutral/current double vortex sheet in the framework of the resistive magnetohydrodynamics is addressed. The resulting dynamics given by the...

  • Cluster-C1 observations on the geometrical structure of linear magnetic holes in the solar wind at 1AU. Xiao, T.; Shi, Q. Q.; Zhang, T. L.; Fu, S. Y.; Li, L.; Zong, Q. G.; Pu, Z. Y.; Xie, L.; Sun, W. J.; Liu, Z. X.; Lucek, E.; Reme, H. // Annales Geophysicae (09927689);Sep2010, Vol. 28 Issue 9, p1695 

    Interplanetary linear magnetic holes (LMHs) are structures in which the magnetic field magnitude decreases with little change in the field direction. They are a 10- 30% subset of all interplanetary magnetic holes (MHs). Using magnetic field and plasma measurements obtained by Cluster-C1, we...

  • Nonequilibrium two-fluid plasmas can generate magnetic fields and flows simultaneously. Saleem, Hamid // Physics of Plasmas;Sep2010, Vol. 17 Issue 9, p092102 

    A new analytical solution of the set of highly nonlinear two-fluid equations is presented to explain the mechanism for the generation of 'seed' magnetic field and plasma flow by assuming the density n to have a profile like an exponential in xy-plane and temperature profiles of electrons (ions)...

  • Transport scaling in interchange-driven toroidal plasmas. Ricci, Paolo; Rogers, B. N. // Physics of Plasmas;Jun2009, Vol. 16 Issue 6, p062303 

    Two-dimensional fluid simulations of a simple magnetized torus are presented, in which the vertical and toroidal components of the magnetic field create helicoidal field lines that terminate on the upper and lower walls of the plasma chamber. The simulations self-consistently evolve the full...

  • Quantum effects on the Rayleigh–Taylor instability in a horizontal inhomogeneous rotating plasma. Hoshoudy, G. A. // Physics of Plasmas;Jun2009, Vol. 16 Issue 6, p064501 

    The Rayleigh–Taylor instability is studied analytically in inhomogeneous plasma rotating uniformly in an external transverse magnetic field. The influence of the quantum mechanism is considered. For a stratified layer the linear growth rate is obtained. Some special cases that isolate the...

  • Intrinsic rotation driven by the electrostatic turbulence in up-down asymmetric toroidal plasmas. Camenen, Y.; Peeters, A. G.; Angioni, C.; Casson, F. J.; Hornsby, W. A.; Snodin, A. P.; Strintzi, D. // Physics of Plasmas;Jun2009, Vol. 16 Issue 6, p062501 

    The transport of parallel momentum by small scale fluctuations is intrinsically linked to symmetry breaking in the direction of the magnetic field. In tokamaks, an up-down asymmetry in the equilibrium proves to be an efficient parallel symmetry breaking mechanism leading to the generation of a...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics