Karpman-Washimi magnetization in relativistic quantum plasmas

Abstract

An interesting phenomenon of ponderomotive Karpman-Washimi magnetization is investigated in ultrarelativistic degenerate plasmas. The quantum characteristics of plasma electrons are considered on incorporating the Fermi pressure and exchange-correlation potential terms into the fluid model of plasmas. The ion fluid is referred to as classically warm. The Karpman-Washimi ponderomotive magnetization MK−WStr and radiation power P¯K−WStr are derived as functions of scaled wave number k¯, scaled effective frequency ω¯∗, ratio of thermal temperature of ions to the Fermi temperature of electrons E¯i′, and fine structure constant α for two cases of streaming and nonstreaming quantum plasmas. It has been observed that the Karpman-Washimi ponderomotive magnetization MK−WStr and the Karpman-Washimi radiation power P¯K−WStr are significantly affected by the scaled streaming velocity v¯0.

Ponderomotive forces due to electron modes in unmagnetized plasmas described by kappa distribution functions

“…In addition, the inclusion of ponderomotive forces in plasmas can act as a generator of slowly varying magnetic fields (Washimi and Watanabe 1977). These effects have been extensively investigated recently, particularly for quantum plasmas, due to their importance in the magnetic field generation in laser matter interaction and in dense plasmas of astrophysical compact objects (Na and Jung 2009, Shukla et al 2010, Jamil et al 2019.…”

Landau Quantised Modification of Rayleigh–Taylor Instability in Dense Plasmas

“…There are many factors that may affect RTI, such as plasma density inhomogeneity [9], thickness scale of the perturbed interface, mass ablation [10], temperaturegradient-dependent magnetic field [11], inhomogeneous magnetic field [12], Weibel instability, resonant absorption, motion of superthermal electrons [13], stationary ponderomotive force [14], etc. All these are entirely studied in classical plasmas, therefore it is a need to introduce non-ideal effects such as Landau quantisation, exchange and correlation potential, etc.…”