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Quantum Electron-Exchange Effects on the Buneman Instability in Quantum Plasmas

Title
Quantum Electron-Exchange Effects on the Buneman Instability in Quantum Plasmas
Author
정영대
Keywords
Buneman Instability; Electron-Exchange Effect; Quantum Plasmas
Issue Date
2015-06
Publisher
VERLAG Z NATURFORSCH
Citation
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES, v. 70, NO 6, Page. 413-418
Abstract
The quantum-mechanical electron-exchange effects on the Buneman instability are investigated in quantum plasmas. The growth rate and wave frequency of the Buneman instability for the quantum plasma system composed of the moving electron fluid relative to the ion fluid are obtained as functions of the electron-exchange parameter, de Broglie's wave length, Debye's length, and wave number. The result shows that the electron-exchange effect suppresses the growth rate of the quantum Buneman instability in quantum plasmas. It is also shown that the influence of electron exchange reduces the instability domain of the wave number in quantum plasmas. However, the instability domain enlarges with an increase in the ratio of the Debye length to the de Broglie wave length. In addition, the electron-exchange effect on the growth rate of the Buneman instability increases with an increase in the ratio of the Debye length to the de Broglie wave length. The variation in the growth rate of the Buneman instability due to the change in the electron-exchange effect and plasma parameters is also discussed.
URI
https://www.degruyter.com/view/j/zna.2015.70.issue-6/zna-2015-0080/zna-2015-0080.xmlhttp://hdl.handle.net/20.500.11754/25804
ISSN
0932-0784; 1865-7109
DOI
10.1515/zna-2015-0080
Appears in Collections:
GRADUATE SCHOOL[S](대학원) > BIONANOTECHNOLOGY(바이오나노학과) > Articles
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