P. K. Shukla

TL;DR: In this article, a physically meaningful nonextensive non-thermal velocity distribution is outlined, where the rarefactive solitons are more affected by nonextensivity than their compressive counterpart and a slight increase in the nonextense parameter may destroy this dual nature.

TL;DR: In this article, the reductive perturbation method was used to identify the basic features of spherical electrostatic solitary structures that may form in such a degenerate dense plasma, and the implications of these results in compact astrophysical objects, particularly in white dwarfs, have been briefly discussed.

TL;DR: In this paper, a pseudo-potential approach was used to investigate arbitrary amplitude solitary waves (SWs) and double layers (DLs) in an ultra-relativistic degenerate dense dusty plasma (containing inertial ultra-cold ion fluid, negatively charged static dust) and showed that SWs with positive potential coexist with DLs with a negative potential for 0.537 > μ > 0.851.

TL;DR: A set of coupled nonlinear Schrödinger (CNLS) equations are used to obtain a nonlinear dispersion, which depicts the modulational stability profile of the coupled plane-wave solutions in left-handed materials.

TL;DR: In this article, the nonlinear propagation of modulated electrostatic wave packets was studied by employing a two-fluid plasma model, and two distinct electrostatic modes were obtained, namely a quasiacoustic lower moddfe and a Langmuir-like upper one, in agreement with experimental observations and theoretical predictions.