Ion acoustic and dust acoustic waves at finite size of plasma particles

Andreev, Pavel A.; Kuz'menkov, L. S.

doi:10.1063/1.4913986

Cited by 15 publications

(2 citation statements)

References 57 publications

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“…By considering our system as quantum plasma, new and very important effects of plasma physics can be investigated. For instance, we may express the propagation of new waves by taking into account spin evolution [7,8] or the presence of neutron beam instabilities in magnetized plasma due to spin-spin and spin-current interactions [9,10] or the formation of quantum vortical [11,12]. By considering the spin-up and spin-down electrons as distinct species, additional plasma modes for the oblique propagation of longitudinal waves in magnetised spin-1/2 plasmas were discovered [13].…”

Section: Introductionmentioning

confidence: 99%

Propagation of ion-acoustic wave and its fractal representations in spin polarized electron plasma

et al. 2023

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Propagation of small-amplitude ion-acoustic waves and its fractal representations is investigated in an electron-ion quantum plasma with separated spin electrons in the framework of the KdV and EKdV equations derived using reductive perturbation technique. The two evolution equations are transformed into planar dynamical systems by using suitable traveling wave transformation. Qualitatively diﬀerent phase portraits of these two systems are drawn with their respective Sagdeev’s pseudopotential curves and surface plots. Distinct orbits in the phase portraits give rise to distinct wave solutions. Periodic and superperiodic wave solutions are investigated numerically and solitary wave solutions are derived analytically. The eﬀect of parameters such as Mach number, direction cosine, spin polarization and frequency ratio on these wave solutions are presented. For instance, it is seen that the spin density polarization ratio has an impressive eﬀect on the amplitude of the wave solution, while the frequency ratio has no eﬀect on its amplitude. Also, we have provided a physical explanation for our ﬁnding. Further, the dynamical features of the original system and reconstructed system using fractal interpolation function are investigated under the external forcing term. Chaotic and quasiperiodic phenomena are observed for diﬀerent initial conditions. The results may help to better understand the degenerate electron gas that exists in astrophysical bodies and laboratory plasmas such as paramagnetic and ferromagnetic metals in exposing the external magnetic ﬁeld.

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Section: Introductionmentioning

confidence: 99%

Propagation of ion-acoustic wave and its fractal representations in spin polarized electron plasma

et al. 2023

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“…A hydrodynamic model explicitly including the effects of particle finite size was developed in Ref. [64].…”

Section: Introductionmentioning

confidence: 99%

Exchange Coulomb interaction in nanotubes: Dispersion of Langmuir waves

Andreev

Ivanov

2015

Physics of Plasmas

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Microscopic derivation of the Coulomb exchange interaction for electrons located on the nanotubes is presented. Our derivation is based on the many-particle quantum hydrodynamic method. We demonstrate the role of the curvature of the nanocylinders on the force of the exchange interaction. We calculate corresponding dispersion dependencies for electron oscillations on the nanotubes.Comment: 10 pages, 9 figure

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