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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.50 [2012] >
IJPAP Vol.50(05) [May 2012] >
| Title: | Linear and non-linear propagation of electron plasma waves in quantum plasma |
| Authors: | Chandra, Swarniv
Paul, Sailendra Nath
Ghosh, Basudev |
| Keywords: | Quantum plasma
Electron plasma waves
Quantum hydrodynamic model
Korteweg de Vries equation |
| Issue Date: | May-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Using one-dimensional quantum hydrodynamic
model, the linear and non-linear
characteristics of electron plasma waves have been studied both analytically
and numerically in a I two-component
unmagnetized dense quantum plasma with streaming motion. It is shown that
quantum effect modifies the linear dispersion character of the electron plasma
waves and streaming effect makes it possible the excitation of two distinct
modes. To describe the non-linear behaviour, Korteweg de Vries equation is derived by using
the standard reductive perturbation technique and incorporating
quantum-mechanical effects. It is shown that depending on/some critical values of the quantum diffraction
parameter both rarefactive and compressive type of solitons can exist in the
model plasma. The structure of the solitary waves is shown to be significantly
affected by the quantum plasma parameters and streaming motion. |
| Page(s): | 314-319 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.50(05) [May 2012]
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