Collision-less shocks and solitons in dense laser-produced Fermi plasma

被引：29

作者：

Goswami, J. ^{[1
]}

Chandra, S. ^{[2
]}

Sarkar, J. ^{[1
]}

Chaudhuri, S. ^{[1
]}

Ghosh, B. ^{[1
]}

机构：

[1] Jadavpur Univ, Dept Phys, Kolkata 700032, India

[2] Govt Gen Degree Coll Kushmandi, Dept Phys, Dakshin Dinajpur 733121, India

来源：

LASER AND PARTICLE BEAMS | 2020年 / 38卷 / 01期

关键词：

Dense plasma; finite temperature; laser-plasma interaction; shocks; solitons; NONLINEAR PROPAGATION; ACOUSTIC-WAVES;

D O I：

10.1017/S0263034619000764

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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.

引用

页码：25 / 38

页数：14

共 32 条

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