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Linear and nonlinear excitations in warm dense matter
- Source :
- Physics Letters A. 383:2277-2284
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- Small and large amplitude linear and nonlinear ion acoustic and Langmuir waves are investigated for plasma with the generalized equation of state (EoS). This EoS covers a wide range of energy-density conditions from dilute classical regime up to the relativistically degenerate matter. Investigation shows that the linear dispersion and localized excitations of ion acoustic waves are significantly affected by the plasma parameters. It is also found that the criterion for ordinary soliton existence is significantly different for fully degenerate and nondegenerate plasma regimes with given electron temperature. In the nondegenerate regime, bright solitons form only for Mach numbers above a critical value which is only a function of the fluid temperature.
- Subjects :
- Physics
Equation of state
Plasma parameters
General Physics and Astronomy
Plasma
Acoustic wave
Warm dense matter
Plasma oscillation
01 natural sciences
Degenerate matter
010305 fluids & plasmas
Physics::Plasma Physics
Quantum electrodynamics
0103 physical sciences
Soliton
010306 general physics
Subjects
Details
- ISSN :
- 03759601
- Volume :
- 383
- Database :
- OpenAIRE
- Journal :
- Physics Letters A
- Accession number :
- edsair.doi...........1491c83c14700829837282997f698e55