https://doi.org/10.1140/epjd/s10053-023-00725-2
Regular Article – Plasma Physics
Laser plasma interaction: plasma waves propagation and their instabilities in the inhomogeneous quantum magnetized electron–positron–ion plasma
Physics Department, Faculty of Science, Sahand University of Technology, 51335-1996, Tabriz, Iran
Received:
4
November
2022
Accepted:
4
July
2023
Published online:
4
August
2023
In this paper, using low frequency and WKB approximations, propagation of electrostatic plasma waves in the presence of a short pulse laser is investigated. The plasma medium is three-component electron–positron–ion inhomogeneous quantum magnetoplasma. Nonuniformity of the initial plasma parameters is in the normal plane. Spatially transverse gradients of the initial number density, streaming velocity, and external magnetic field affect the electrostatic waves directly, in the perpendicular direction. The magnetic field transverse gradient affects parallel waves only through ponderomotive force. In the parallel direction, the magnitude of the ponderomotive force influences the plasma waves directly, and its effect changes in the quantum regime through the quantum modification. The presence of the mentioned transverse gradients can stimulate the electrostatic waves in the stable or unstable modes. The instability rate and also the velocity of the waves depends on the amount of the gradients. This paper gives a good perspective in studying the astronomical plasmas including positrons and also acceleration of plasma particles through ponderomotive force.
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