Gravitoelectrostatic excitations in an opposite polarity complex plasma

El-Taibany, W. F.; Behery, E. E.; El‐Labany, S. K.; Abdelghany, A. M.

doi:10.1063/1.5092514

Cited by 20 publications

(6 citation statements)

References 53 publications

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“…Using a non-perturbative approach, Abulwafa et al [42] studied DAWs in a four-component dusty plasma with particles obeying non-Maxwellian distribution and showed the coexistence of compressive and rarefactive solitary waves. El-Taibany et al [43] investigated the dynamical behaviors of linear and nonlinear DAWs in the presence of polarization and self-gravitational force. El-Monier and Atteya [18] qualitatively analyzed the bifurcation behavior for DAWs in a multi-component dusty plasma.…”

Section: Introductionmentioning

confidence: 99%

Coexisting wave features and various nonlinear waves for Schrödinger equation in superthermal dusty plasma

et al. 2022

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Coexistence of dust-acoustic wave (DAW) features and their properties are studied in a four-component dusty plasma constituting superthermal plasma particles in the framework of nonlinear Schrodinger equation (NLSE). Dynamical behaviors of the system are first explored by phase portraits and then the solutions corresponding to phase trajectories are explained analytically as well as numerically with physical perceptions. Introducing a periodic force, the system is analyzed for the existence of multi-periodic, quasiperiodic, and chaotic motions. Results of this work can be useful to understand the wave phenomena in the interstellar medium where superthermally distributed plasma particles are recognized.

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Section: Introductionmentioning

confidence: 99%

Coexisting wave features and various nonlinear waves for Schrödinger equation in superthermal dusty plasma

et al. 2022

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“…They found that the presence of a polarization force leads to a decrease in the Mach number regime where solitary structures can exist. El-Taibany et al [41] investigated the linear and nonlinear features of gravitoelectrostatic opposite polarity dusty plasma in the framework of the Sagdeev potential approach, taking into account the effect of polarization force on the negatively charged dust grains. They found that the real wave frequency is reduced by the presence of polarization force.…”

Section: Introductionmentioning

confidence: 99%

Large-amplitude dust acoustic solitons in an opposite polarity dusty plasma with generalized polarization force

Khaled¹,

Shukri²,

Hager³

2022

Chinese Phys. B

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The linear and nonlinear dust acoustic (DA) waves have been investigated in an opposite polarity dusty plasma comprising negatively and positively charged dust grains, Maxwellian electrons and ions, including generalized polarization force efiect. The properties of linear DA waves have been signiflcantly altered by the dual dust polarity and the polarization force. Large amplitude DA solitons have been discussed in the framework of Sagdeev potential technique. Our results show that both the rarefactive and compressive solitons can exist in such a dusty plasma. The basic features of the Sagdeev potential have been examined under the efiect of the polarization force parameter R, the ratio of the charge number of the positive dust to that of the negative dust Z, and the Mach number M. The results show that these parameters play a signiflcant role in determining the region of the existence of large amplitude DA solitons.

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“…But there is direct evidence for the co-existence of both positively and negatively charged dust particles in different regions of space plasmas such as, the Earth's mesosphere [17], cometary tails [18], Jupiter's magnetospheres [19] and laboratory devices [20]. Recently, El-Taibany et al [21] have studied the effects of polarization force on the electrostatic solitary waves. But they have ignored the effects of polarization force on the positive dust.…”

Section: Introductionmentioning

confidence: 99%

Dust Acoustic Multi-soliton Collisions in a Dusty Plasma Using Hirota Bilinear Method

Khaled¹,

Shukri²,

Hager³

2021

JAUST

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The propagation and collision of dust acoustic (DA) multi-solitons in a four component dusty plasma which consists of negatively and positively charged cold dust fluids, Boltzmann distributed electrons and ions have been studied in the presence of a polarization force acting on dust grains. Using the reductive perturbation technique (RPT), the Korteweged-de Vries (KdV) equation is derived. By using the Hirota bilinear method, the two-and three-soliton solutions of the obtained KdV equation have been successfully obtained. Phase shifts of the two-soliton and three-soliton have been deduced. It has been found that both compressive and rarefactive solitons exist in current dusty plasma model. The polarization force plays a significant role in the overtaking collision process of two-soliton and three-soliton, in such a way that the amplitude of the compressive (rarefactive) solitons decreases (increases) as polarization force increases. It was also found that the phase shifts are significantly affected by the dusty plasma parameters such as the dust charge number ratio, ion-to-electron temperature ratio, negative-to-positive dust mass ratio, the ratio of the densities of electrons to ions and the polarization force parameter.

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Gravitoelectrostatic excitations in an opposite polarity complex plasma

Cited by 20 publications

References 53 publications

Coexisting wave features and various nonlinear waves for Schrödinger equation in superthermal dusty plasma

Coexisting wave features and various nonlinear waves for Schrödinger equation in superthermal dusty plasma

Large-amplitude dust acoustic solitons in an opposite polarity dusty plasma with generalized polarization force

Dust Acoustic Multi-soliton Collisions in a Dusty Plasma Using Hirota Bilinear Method

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