In this article, we have studied the electron acoustic waves in a magnetized plasma containing Kappa distributed ions which are streaming with high velocity within and under action of external force. We employed homotopy perturbation method (HPM) to obtain graphical plots solitary structures their evolution into an envelope soliton. Analytically, obtained linear dispersion relation its characteristics. Further, derived Korteweg–De Vries (KdV) equation using reductive technique parametric...

Abstract By using reductive perturbation technique we have studied the linear and non-linear properties of ion-acoustic solitary structures in a three-component plasma containing non-thermal electrons Boltzmann positrons comparatively cold ion which has got streaming motion. The Korteweg–de Vries equation been obtained dependence small amplitude on various parameters such as velocity ( v 0 ), parameter (β), reciprocal electron temperature (χ), positron density p Mach number M (δ) studied....

Abstract The propagation of electron acoustic solitary waves is investigated in magnetized two‐temperature plasma with supra‐thermal ion. By using the reductive perturbation technique, Korteweg de‐Vries (KdV) equation derived. Later solving this equation, a wave solution has been These are mainly astrophysical plasmas where changes local charge density, temperature, and energy particles produce considerable effects on system. supra‐thermality, Mach number structures studied detail. results...

Abstract The theoretical investigation of shocks and solitary structures in a dense quantum plasma containing electrons at finite temperature, nondegenerate cold electrons, stationary ions has been carried out. A linear dispersion relation is derived for the corresponding electron acoustic waves. small nonlinearity have studied by using standard reductive perturbation method. We considered collisions to be absent, arise out viscous force. Furthermore, with help technique, KdV–Burger equation...

Abstract In this paper we have studied the gradual evolution of stationary formations in electron acoustic waves at a finite temperature quantum plasma. We made use Quantum hydrodynamics model equations and obtained KdV-Burgers equation. From here showed how amplitude modulated solitons evolve from double layer structures through shock fronts ultimately converging into solitary structures. various parametric influences on such structure also variations these parameter affect transition one...

In this work, we start with the ion-acoustic waves in galactic plasma degenerate matter. We use reductive perturbation technique to derive spherical Kadomtsev–Petviashvili (SKP) equation. next employ homotopy-aided symbolic simulation (HASS) study evolution of solitary wavefront. compare results obtained by HPM and RPT. To understand how system behaves, transform evolutionary equations into a dynamical system. The phase portraits superperiodic reflect on intricate processes within determine...

In this work, we start with the quantum hydrodynamic model equations for two temperature-populated electrons in a dense plasma effects. We obtain KdV equation electron acoustic (EAW) mode. The EAW self-interacts to form rogue wave-type envelop soliton which is described by nonlinear Schrodinger (NLS) equation. To study stability criteria, transform and NLS into its dynamical system counterparts analyze phase portraits carry out bifurcation analysis. possibility of hyperchaos discussed...

In this article, we consider a dense stellar plasma consisting of predominantly electrons, positrons, and ions under the action magnetic field star. We derived Korteweg–de Vries Burgers (KdV-Burgers) equations by using reductive perturbation technique obtained shock solitary profiles for magnetoacoustic waves. further studied self-interaction such stationary formations amplitude modulated envelope solitons. The possibility rogue wave-like structure is also discussed. To understand physical...

Using the one dimensional quantum hydrodynamic model for a two-component electron-ion dense plasma linear and nonlinear properties of electron waves are studied including ion motion. By using standard method multiple scales perturbation technique Schrödinger equation containing effects is derived. From this it shown that with immobile ions an wave becomes modulationally unstable in two distinct regions wavenumber. Numerical calculation shows stability domain wavevector shrinks increase...

Abstract In this theoretical study, we investigate the amplitude modulation and envelop soliton formation in a dense plasma when such interacts with strong laser beam. We have made use of symbolic simulation technique to find instability an electrostatic wave higher orders non‐linearity. identified range wavenumber which non‐linearity is important. Furthermore, analysed envelope waves localized space. The results obtained here will be helpful interpreting different phenomena that arise...

Abstract In this paper, we study the second harmonic generation and its interaction with fundamental mode in a magnetised dense positron-ion plasma interacting laser pulses. It has been shown that different harmonics propagate phase velocities. The gradual evolution of wave into higher is studied, conversion efficiency calculated. Dependence on wavenumber shifts applied magnetic field also examined.

Abstract We studied the nonlinear evolution of an amplitude-modulated envelop soliton formed in a dense plasma when laser beam interacts with it. The employment our newly developed technique, homotopy-assisted symbolic simulation, has been instrumental study nature and formation envelope solitons their dependence on various parameters. different orders homotopy perturbation generate convergent series solution for such coupled partial differential equations (PDE). Our technique bypasses...

In this paper, a theoretical investigation of nonlinear electron acoustic waves in plasmas containing degenerate electrons at finite temperature, non-degenerate cold and stationary ions has been carried out. We have considered various effects by employing the standard reductive perturbation technique (RPT), KdV-Burger equation describing shock fronts studied. The absence viscous term results transformation KDV-B to KdV equation. studied with variations different plasma parameters. Analytical...

By employing a quantum hydrodynamic (QHD) model with appropriate boundary conditions, the nonlinear self-interaction of an electrostatic surface wave on otherwise homogeneous semibounded plasma degeneracy effects is investigated. It has been found that part second harmonic generated through does not have true feature but propagates obliquely away from plasma–vacuum interface into bulk plasma. Such situation obtained in laser–plasma interaction during etching, processing, and so on. In this...

In the work, we study formation of electron acoustic Korteweg–de Vries (KdV) solitons and their gradual nonlinear evolution into a peregrine soliton (PS) in dense plasma at finite temperature with quantum effects. The under consideration has anisotropy along direction wave propagation. Such an is due to initial disturbance incorporated system or lack homogeneity field quantities. We have studied both linear characteristics dispersion relation. By employing reductive perturbation technique,...