TITLE

Dust ion-acoustic shocks in quantum dusty pair-ion plasmas

AUTHOR(S)
Misra, A. P.
PUB. DATE
March 2009
SOURCE
Physics of Plasmas;Mar2009, Vol. 16 Issue 3, p033702
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The formation of dust ion-acoustic shocks in a four-component quantum plasma whose constituents are electrons, both positive and negative ions, and immobile charged dust grains, is studied. The effects of both the dissipation due to kinematic viscosity and the dispersion caused by the charge separation as well as the quantum tunneling associated with the Bohm potential are taken into account. The propagation of small but finite amplitude dust ion-acoustic waves is governed by the Korteweg–de Vries–Burger equation, which exhibits both oscillatory and monotonic shocks depending not only on the viscosity parameters η±=μ±ωp-/cs2 (where μ± are the coefficients of kinematic viscosity, ωp- is the plasma frequency for negative ions, and cs is the ion-sound speed), but also on the quantum parameter H (the ratio of the electron plasmon to the electron Fermi energy) and the positive to negative ion density ratio β. Large amplitude stationary shocks are recovered for a Mach number (M) exceeding its critical value (Mc). Unlike the small amplitude shocks, quite a smaller value of η+, η-, H and β may lead to the large amplitude monotonic shock structures. The results could be of importance in astrophysical and laser produced plasmas.
ACCESSION #
37258872

 

Related Articles

  • Inelastic electronic excitation and electron transfer processes in collisions between Mg(3 1S0) atoms and K+(1S0) ions studied by crossed beams in the 0.10-3.80-keV energy range. Sabidó, M.; de Andrés, J.; Sogas, J.; Lucas, J. M.; Albertí, M.; Bofill, J. M.; Aguilar, A. // Journal of Chemical Physics;9/22/2005, Vol. 123 Issue 12, p124314 

    Inelastic and charge-transfer excitation processes in collisions between ground-state neutral Mg atoms and K+ ions have been studied by means of a crossed molecular-beam technique. Decay fluorescent emissions from Mg(3 1P1),Mg(4 3S1), and Mg(3s13d1,3 3D3,2,1) as well as the phosphorescent...

  • Analytical derivation of the Hückel “4 n + 2 rule”. Mayer, István // Theoretical Chemistry Accounts: Theory, Computation, & Modeling;Mar2010, Vol. 125 Issue 3-6, p203 

    The “4 n + 2 rule” is derived analytically at the level of the simple Hückel theory for neutral even-membered chains, their double ions, as well as cations and anions of the odd-membered chains, by determining the first order energetic effect of the ring closure. The topological...

  • Nonlinear physics of laser-irradiated microclusters. Breizman, Boris N.; Arefiev, Alexey V.; Fomyts'kyi, Mykhailo V. // Physics of Plasmas;May2005, Vol. 12 Issue 5, p056706 

    A nonlinear theory has been developed to describe electron response and ion acceleration in dense clusters that are smaller in size than the laser wavelength. This work is motivated by high-intensity laser-cluster interaction experiments. The theory reveals that the breakdown of quasineutrality...

  • Edge ion heating by launched high harmonic fast waves in the National Spherical Torus Experiment. Biewer, T. M.; Bell, R. E.; Diem, S. J.; Phillips, C. K.; Wilson, J. R.; Ryan, P. M. // Physics of Plasmas;May2005, Vol. 12 Issue 5, p056108 

    A new spectroscopic diagnostic on the National Spherical Torus Experiment (NSTX) [J. Spitzer, M. Ono, M. Peng, D. Bashore, T. Bigelow, A. Brooks, J. Chrzanowaki, H. M. Fan, P. Heitzenroeder, T. Jarboe et al., Fusion Technol2. 30, 1337 (1996)] measures the velocity distribution of ions in the...

  • Ionization potentials and electron affinities in the Perdew–Zunger self-interaction corrected density-functional theory. Vydrov, Oleg A.; Scuseria, Gustavo E. // Journal of Chemical Physics;5/8/2005, Vol. 122 Issue 18, p184107 

    Using a self-consistent implementation of the Perdew–Zunger self-interaction corrected (PZ-SIC) density-functional theory, we have calculated ionization potentials (IP) and electron affinities (EA) of first- and second-row atoms and a set of small molecules. Several exchange-correlation...

  • Charge transfer by high-energy electrons onto the leeward surfaces of a solid in a supersonic rarefied plasma flow. Shuvalov, V.; Priimak, A.; Bandel, K.; Kochubei, G. // Journal of Applied Mechanics & Technical Physics;Jan2008, Vol. 49 Issue 1, p9 

    Numerical and experimental dependence of equilibrium potentials of the leeward surfaces on the ratio of concentrations of high-energy electrons and positive ions in a supersonic rarefied plasma flow around a solid are obtained.

  • Ion orbits in plasma etching of semiconductors. Madziwa-Nussinov, Tsitsi G.; Arnush, Donald; Chen, Francis F. // Physics of Plasmas;Jan2008, Vol. 15 Issue 1, p013503 

    Fabrication of high-speed semiconductor circuits depends on etching submicron trenches and holes with straight walls, guided by sheath accelerated ions, which strike the substrate at a normal angle. Electrons accumulate at the nonconductive entrance of each trench, charging it negatively and...

  • Isotopic Dependence of Neutron Emission from Dinuclear System. Zubov, A. S.; Adamian, G. G.; Antonenko, N. V.; Ivanova, S. P.; Scheid, W. // AIP Conference Proceedings;2007, Vol. 912 Issue 1, p276 

    Using the statistical approach, we study the isotopic dependence of the de-excitation of dinuclear systems formed in the entrance channel of heavy ion reactions. The probabilities of neutron emission from the dinuclear systems 62–73Ni+208Pb are estimated and a possible experiment for the...

  • Visible light-induced reduction of Ag+ cations in silver hydrosols. Sergeev, B. M.; Sergeev, G. B. // Colloid Journal;Feb2010, Vol. 72 Issue 1, p145 

    It is shown that, in silver hydrosols that are produced by the reduction of metal cations under the action of borohydride and do not contain electron-donor additives, the photoinduced reduction of Ag+ ions and photoinduced oxidation of nanoparticles occur at pH 9.0 and 4.0, respectively. The...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

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

Try another library?
Sign out of this library

Other Topics