Linear and nonlinear quantum ion acoustic waves in a plasma with positive, negative ions and Fermi electron gas

June 2010
Physics of Plasmas;Jun2010, Vol. 17 Issue 6, p062303
Academic Journal
Linear and nonlinear propagations of quantum ion acoustic waves in positive, negative ions and electron plasma have been vetted via the dispersion relation and Korteweg–de Vries equation, where the ions are inertial and electrons are inertialess. The quantum mechanical effects arising due to the quantum diffraction and Fermi–Dirac statistics for this system are taken into account. The existence, as well as the type (compressive/rarefactive) of solitary wave propagating in the system, is strongly dependent on the numerical value of dimensionless quantum parameter He. It is observed that negative ion population and ion mass ratio have emphatic influence on the phase velocity of ion acoustic wave and the propagation of localized coherent solitary structures at quantum scale in the system.


Related Articles

  • Nonplanar ion-acoustic solitary waves with superthermal electrons in warm plasma. Eslami, Parvin; Mottaghizadeh, Marzieh; Pakzad, Hamid Reza // Physics of Plasmas;Jul2011, Vol. 18 Issue 7, p072305 

    In this paper, we consider an unmagnetized plasma consisting of warm adiabatic ions, superthermal electrons, and thermal positrons. Nonlinear cylindrical and spherical modified Korteweg-de Vries (KdV) equations are derived for ion acoustic waves by using reductive perturbation technique. It is...

  • Reflection of ion acoustic solitons in a plasma having negative ions. Chauhan, Sarvesh S.; Malik, H.K.; Dahiya, R.P. // Physics of Plasmas;Nov96, Vol. 3 Issue 11, p3932 

    Investigates the reflection of compressive and rarefractive ion acoustic solitons propagating in an inhomogeneous plasma in the presence of negative ions. Derivation of modified Korteweg-de Vries equations for incident and reflected solitons; Relationship of the amplitude of incident and...

  • Large Mach number ion acoustic rarefactive solitary waves for a two electron temperature warm ion... Ghosh, S.S.; Ghosh, K.K.; Iyengar, A.N. Sekar // Physics of Plasmas;Nov96, Vol. 3 Issue 11, p3939 

    Investigates ion acoustic rarefractive solitary wave solutions for a wide range of different plasma parameters. Derivation of an exact analytical form of Sagdeev pseudopotential for a two-electron temperature warm ion plasma; Compliance with Korteweg-de Vries soliton-type behavior only for...

  • Oblique collision of modified Korteweg-de Vries ion-acoustic solitons. Nakamura, Y.; Bailung, H.; Lonngren, K.E. // Physics of Plasmas;Sep99, Vol. 6 Issue 9, p3466 

    Investigates two-dimensional propagation and oblique collision of modified Korteweg-de Vries (mKdV) ion-acoustic solitons in a plasma with negative ions. Resonance interaction of compressive and refractive mKdV solutions at a particular amplitude; Positive phase shift during the interaction.

  • Association between weakly relativistic ion modulation modes in a collisionless plasma. Nejoh, Yasunori // Physics of Fluids (00319171);Oct88, Vol. 31 Issue 10, p2914 

    Association between weakly relativistic ion modulation modes described by the Korteweg-de Vries equation in the small wavenumber region and by the nonlinear Schrödinger equation in the finite wavenumber region is found in a collisionless unmagnetized plasma. It is shown that the stability...

  • Ion-acoustic solitary waves in relativistic plasmas. Roychoudhury, R. K.; Bhattacharyya, Sikha // Physics of Fluids (00319171);Aug87, Vol. 30 Issue 8, p2582 

    Using a pseudopotential approach, solitary wave solutions in a relativistic plasma have been found.

  • Weakly relativistic effect in the formation of ion-acoustic solitary waves in a positive ion-beam plasma. Kalita, B. C.; Das, R.; Sarmah, H. K. // Canadian Journal of Physics;Mar2010, Vol. 88 Issue 3, p157 

    Relativistic solitons are investigated in a plasma with positive-ion beams using the Korteweg–de Vries (KdV) equation considering relativistic effects smaller for γi ≍ O(v2/c2) and γe ≍ O(u2/c2), and larger for γi ≍ O(v4/c4) and γe ≍ O(u4/c4), where...

  • Nonthermal effects on the ion-acoustic solitons in Lorentzian electron-ion plasmas. Jung, Young-Dae; Hong, Woo-Pyo // Physics of Plasmas;Feb2011, Vol. 18 Issue 2, p024502 

    The nonthermal effects on the propagation of the ion-acoustic soliton are investigated in generalized Lorentzian electron-ion plasmas. The soliton solution of the Korteweg-de Vries equation is obtained as a function of the spectral index and modified stretched coordinate in the generalized...

  • Electrostatic Korteweg-deVries solitary waves in a plasma with Kappa-distributed electrons. Choi, C.-R.; Min, K.-W.; Rhee, T.-N. // Physics of Plasmas;Sep2011, Vol. 18 Issue 9, p092901 

    The Korteweg-deVries (KdV) equation that describes the evolution of nonlinear ion-acoustic solitary waves in plasmas with Kappa-distributed electrons is derived by using a reductive perturbation method in the small amplitude limit. We identified a dip-type (negative) electrostatic KdV solitary...


Read the Article


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

Try another library?
Sign out of this library

Other Topics