Linear and nonlinear excitations in warm dense matter

Autor:	M. Akbari-Moghanjoughi, M. Mohammadnejad
Rok vydání:	2019
Předmět:	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
Zdroj:	Physics Letters A. 383:2277-2284
ISSN:	0375-9601
DOI:	10.1016/j.physleta.2019.04.047
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1491c83c14700829837282997f698e55 https://doi.org/10.1016/j.physleta.2019.04.047 Zobrazit plný text záznamu Full Text from ScienceDirect