Distinctive features of ion-acoustic solitons in EPI super-dense magneto-plasmas with degenerate electrons and positrons

TL;DR

This paper investigates the unique behavior of ion-acoustic solitons in ultra-relativistically degenerate, magnetized super-dense plasmas with electrons and positrons, revealing distinctive interaction features using a perturbative analytical approach.

Contribution

It introduces the application of the extended PLK method to analyze ion-acoustic solitary waves in ultra-relativistic degenerate electron-positron magneto-plasmas, highlighting novel interaction characteristics.

Findings

Ion-acoustic solitary waves exhibit unique interaction features under ultra-relativistic degeneracy.

The plasma's response to soliton interactions differs significantly from non-degenerate cases.

Ultra-relativistic degeneracy pressure influences the propagation and interaction of ion-acoustic waves.

Abstract

Using the extended Poincar\'{e}-Lighthill-Kuo (PLK) reductive perturbation method to study the small-amplitude ion acoustic solitary wave (IASW) dynamics (propagation and interaction), it is shown that in Thomas-Fermi magneto-plasma consisting of inertial-less degenerate electrons and positrons and isothermal ions, distinctive features emerge when the ultra-relativistic degeneracy pressure applies to electrons and positrons. Calculations show that ion-acoustic solitary waves may interact differently in such plasmas under ultra-relativistic degeneracy pressure.