https://doi.org/10.1140/epjd/s10053-021-00313-2
Regular Article – Plasma Physics
Formation of ion acoustic rogue waves in warm dense matter
Department of Physics, Faculty of Sciences, Azarbaijan Shahid Madani University, 51745-406, Tabriz, Iran
Received:
26
June
2021
Accepted:
17
November
2021
Published online:
15
December
2021
In the current research, we use the hydrodynamic model of electron-ion plasmas with a very general Fermi–Dirac equation of state for electrons in order to investigate the modulational behaviour of ion acoustic (IA) excitation in environments relevant to a wide range of parameters from laboratory to astrophysical phenomena. The reductive perturbation method is used to reduce the model equations into the nonlinear Schrödinger equation from which the dispersion of modulated IA excitations is evaluated and the stability criterion for nonlinear envelope excitations is obtained in terms of normalized electron temperature and chemical potential, applicable to a wide range of parametric space from solid state and inertial-confined fusion plasmas up to the compact stellar objects like white dwarf stars. It is shown that both kinds of bright and dark envelop solitons can exist in warm dense matter, and their stability depends strongly on electron fluid parameters.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2021
