Collision-less shocks and solitons in dense laser-produced Fermi plasma. (20th March 2020)

• Record Type: Journal Article
• Authors: Goswami, J.; Chandra, S.; Sarkar, J.; Chaudhuri, S.; Ghosh, B.
• Is Part Of: Laser and particle beams. Volume 38:Number 1(2020)
• Page Start: 25
• Page End: 38
• Publication Date: 2020-03-20
• Subjects: Dense plasma, -- finite temperature, -- laser–plasma interaction, -- shocks, -- solitons; Laser beams -- Periodicals; Particle beams -- Periodicals; 535.5
• DOI: 10.1017/S0263034619000764
• Languages: English
• ISSNs: 0263-0346

Abstract

Abstract: The theoretical investigation of shocks and solitary structures in a dense quantum plasma containing electrons at finite temperature, nondegenerate cold electrons, and stationary ions has been carried out. A linear dispersion relation is derived for the corresponding electron acoustic waves. The solitary structures of small nonlinearity have been studied by using the standard reductive perturbation method. We have considered collisions to be absent, and the shocks arise out of viscous force. Furthermore, with the help of a standard reductive perturbation technique, a KdV–Burger equation has been derived and analyzed numerically. Under limiting cases, we have also obtained the KdV solitary profiles and studied the parametric dependence. The results are important in explaining the many phenomena of the laser–plasma interaction of dense plasma showing quantum effects.