2024 : 6 : 21
S.Mohammad Motevalli

S.Mohammad Motevalli

Academic rank: Associate Professor
ORCID:
Education: PhD.
ScopusId:
Faculty: Science
Address: Department of Nuclear Physics, Faculty of Sciences, University of Mazandaran, P. O. Box 47415-416, Babolsar, Iran
Phone: 01135302480

Research

Title
Positron-Acoustic Solitons with Two Temperature q-Nonextensive Electrons in Plasma
Type
JournalPaper
Keywords
Soliton, Positron-acoustic, Plasma, q-nonextensive.
Year
2022
Journal Pramana - Journal of Physics
DOI
Researchers Mehdi Mirzaei ، S.Mohammad Motevalli

Abstract

The propagation of solitons is studied in a tokamak plasma composed of immobile ions, hot fluid positrons and two electron sets with hot and cold temperatures with a q-non-extensive distribution. Korteweg–de Vries (KdV) equation is obtained via the reductive perturbation method (RPM). The dependence of positron-acoustic solitons on the ratio of hot /cold electrons density to positrons density, positrons temperature to temperature of hot/cold electrons, the non-extensivity parameters qeh and qec, as well as the angle between the magnetic field and wave propagation are investigated.