Modulation of electron-acoustic waves in a plasma with kappa distribution
Yükleniyor...
Dosyalar
Tarih
2016-03
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
American Institute of Physics Inc.
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In the present work, employing a one dimensional model of an unmagnetized collisionless plasma consisting of a cold electron fluid, hot electrons obeying ? velocity distribution, and stationary ions, we study the amplitude modulation of an electron-acoustic waves by use of the conventional reductive perturbation method. Employing the field equations of such a plasma, we obtained the nonlinear Schrödinger equation as the evolution equation. Seeking a harmonic wave solution with progressive wave amplitude to the evolution equation, as opposed to the plasma with vortex distribution, the amplitude wave assumes a shock wave type of solution. Finally, the modulational stability of the wave is studied and it is observed that the wave is modulationally stable for all admissible wave numbers.
Açıklama
Anahtar Kelimeler
Acoustic waves, Amplitude modulation, Collisionless plasmas, Differential equations, Electrons, Hot electrons, Modulation, Nonlinear equations, Perturbation techniques, Shock waves, Electron acoustic waves, Evolution equations, Harmonic wave solutions, Modulational stability, One-dimensional model, Reductive perturbation methods, Unmagnetized collisionless plasma, Vortex distribution, Acoustics, Higher-order terms, Solitary waves, Nonlinear-waves, Propagation
Kaynak
Physics of Plasmas
WoS Q Değeri
Q3
Scopus Q Değeri
Q1
Cilt
23
Sayı
3
Künye
Demiray, H. (2016). Modulation of electron-acoustic waves in a plasma with kappa distribution. Physics of Plasmas, 23(3), 1-6. doi:10.1063/1.4943279
