Muhammad Rafique
University of Azad Jammu and Kashmir, Pakistan
Title: Kinetic study of two temperature twisted ion acoustic waves
Biography
Biography: Muhammad Rafique
Abstract
The electrostatic twisted ion acoustic wave (TIAW) with two components (hot and cold) of positive ions having distinct finite orbital angular momentum (OAM) states is investigated in an un-magnetized collision less electron-ion plasma. The Vlasov-Poisson coupled set of equation is used for the analysis of dynamics of TIAW. The Laguerre Gaussian solutions are employed on perturbed quantities owing to the helical phase structures. The dispersion properties and Landau damping rates of TIAW are analyzed both analytically and numerically. It is found that wave frequency and Landau damping rate are significantly modified in the presence of finite states of OAM. It is shown that twist parameter, hot to cold ion density and temperature ratios have significant influence on damping rate and wave frequency. The result will be useful in considering laser matter interaction and particle transport in laboratory plasmas.