Weakly dissipative dust acoustic solitons in the presence of superthermal particles

Khan, S. A.; Rahman, Ataur; Hadi, Fazal; Zeb, Aurang; Khan, Muhammad Zubair

doi:10.1002/ctpp.201700008

Cited by 17 publications

(7 citation statements)

References 34 publications

(37 reference statements)

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“…At the same time, physics of plasma dissipative soliton is just beginning to develop. Models of dissipative solitons are presented in [20][21][22][23][24] (for ion-, electron-, dust-acoustic (DA) modes) and [25,26] (for Langmuir mode). Despite the fact that abovementioned models describe solitons of various types, they all exhibit a common feature: in the case of weak dissipation, the dissipative soliton has a profile close to a classical one, while the wave evolution corresponds to a slow decay.…”

Section: Introductionmentioning

confidence: 99%

“…Despite the fact that abovementioned models describe solitons of various types, they all exhibit a common feature: in the case of weak dissipation, the dissipative soliton has a profile close to a classical one, while the wave evolution corresponds to a slow decay. It should be noted that none of the acoustic models [20][21][22][23][24] considers the concept of dissipative solitons in terms of self-organization because of a lack of forces compensating for dissipation. In experimental works [27,28] only dissipative solitons with external pulse excitation were studied.…”

Section: Introductionmentioning

confidence: 99%

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Microdynamic and thermodynamic properties of dissipative dust-acoustic solitons

Trukhachev¹,

Vasiliev²,

Петров³

et al. 2021

J. Phys. A: Math. Theor.

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Properties of weakly dissipative dust-acoustic solitons are analyzed on the basis of the hydrodynamic and single-particle approximation (Lagrangian–Euler approach). Significant differences between dissipative and conservative solitons are found. Particle-wave microdynamic parameters such as trajectories, phase trajectories, and drift velocity of dust particles under the action of a cascade of solitons are calculated. It is shown that dissipation is responsible for the interconnection of solitons in the ensemble. In addition, dissipative solitons significantly affect the environment comparing with conservative ones. The heat release processes that determine the production of entropy are analyzed. The role of dissipation in the ordering of charged particles trajectories is revealed. The theoretical results are in a reasonable agreement with known experimental data.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microdynamic and thermodynamic properties of dissipative dust-acoustic solitons

Trukhachev¹,

Vasiliev²,

Петров³

et al. 2021

J. Phys. A: Math. Theor.

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“…The DSs are also studied in ref. [28]. To the best of our knowledge, the ion-acoustic (IA) DSs in magnetized plasma with Maxwellian electrons in the presence of pressure anisotropy are unexplored so far.…”

mentioning

confidence: 99%

“…it is not a completely integrable Hamiltonian framework, i.e., we cannot find its exact solution, we cannot solve it analytically [26,28], here the energy of the soliton is not conserved but exponentially decreases with time, the soliton energy and amplitude are respectively given by…”

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confidence: 99%

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Dissipative solitons in magnetized anisotropic plasma

Khalid¹,

Khan²

2022

EPL

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The propagation of ion acoustic (IA) dissipative solitons (DSs) is investigated in magnetized plasma with the presence of pressure anisotropy and Maxwellian distributed electrons. A nonlinear damped Korteweg-de-Vries (d-KdV) type equation is derived for the potential by employing the reductive perturbation method (RPM) and its dissipative soliton solution is analyzed. The effect of plasma parameters like parallel anisotropic ion pressure p1, perpendicular anisotropic ion pressure p2, obliqueness l3, ion-neutral collisional parameter γ and magnetic field strength on the characteristics of DSs are investigated. The present investigation could be useful in space and astrophysical plasma systems.

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Ion‐ and positron‐acoustic solitons in magnetized dusty plasma with q‐non‐extensive electron and positron velocity distribution

Motevalli

Mohsenpour

Dashtban

2018

Contributions to Plasma Physics

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In this study, the properties of ion-and positron-acoustic solitons are investigated in a magnetized multi-component plasma system consisting of warm fluid ions, warm fluid positrons, q-non-extensive distributed positrons, q-non-extensive distributed electrons, and immobile dust particles. To drive the Korteweg-de Vries (KdV) equation, the reductive perturbation method is used. The effects of the ratio of the density of positrons to ions, the temperature of the positrons, and ions to electrons, the non-extensivity parameters q e and q p , and the angle of the propagation of the wave with the magnetic field on the potential of ion-and positron-acoustic solitons are also studied. The present investigation is applicable to solitons in fusion plasmas in the edge of tokamak.

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Weakly dissipative dust acoustic solitons in the presence of superthermal particles

Cited by 17 publications

References 34 publications

Microdynamic and thermodynamic properties of dissipative dust-acoustic solitons

Microdynamic and thermodynamic properties of dissipative dust-acoustic solitons

Dissipative solitons in magnetized anisotropic plasma

Ion‐ and positron‐acoustic solitons in magnetized dusty plasma with q‐non‐extensive electron and positron velocity distribution

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