Theory of modulational interactions in plasmas in the presence of an external magnetic field

Popel, S. I.; Владимиров, С. В.; Цытович, В. Н.

doi:10.1016/0370-1573(95)00010-e

Cited by 43 publications

(10 citation statements)

References 97 publications

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“…The situation is similar to those which occur in the process of the AMPTE barium release (Bingham et al, 1991;Popel et al, 1995) and interaction of the solar wind with the coma of the comet Hyakutake (Dawson et al, 1997).…”

Section: Large Meteoroid Impacts and Transient Atmospheressupporting

confidence: 48%

“…The width of this turbulent region is estimated to be of the order of 10-100 km. In the turbulent region which corresponds to the compression region of the collisionless shock wave (Bingham et al, 1991;Popel et al, 1995) one can expect the increase of the magnetic field while inside the vapor jet the magnetic field is decreased and the formation of the diamagnetic cavity is possible. The development of the plasma turbulence results in the electron heating.…”

Section: Large Meteoroid Impacts and Transient Atmospheresmentioning

confidence: 99%

“…The detection of fast electron formation and x-ray flux at the head of the comet Hyakutake (Dawson et al, 1997) and plasma oscillations at the boundary of diamagnetic cavity of the artificial comet AMPTE caused by barium release (Bingham et al, 1991;Popel et al, 1995) are the basis for our hypothesis of the plasma turbulence in large regions of the solar wind above the lunar surface.…”

Section: Large Meteoroid Impacts and Transient Atmospheresmentioning

confidence: 99%

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Charged dust and shock phenomena in the Solar System

Popel

Gisko

2006

Nonlin. Processes Geophys.

136

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Abstract.The results on shock phenomena in dusty plasmas of the Solar System are reviewed. The problems of dust ion acoustic bow shock in interaction of the solar wind with dusty cometary coma and formation of transient atmospheres of atmosphereless cosmic bodies such as Moon, Mercury, asteroids and comets are considered. The latter assumes the evolution of meteoroid impact plumes and production of charged dust grains due to the condensation of both the plume substance and the vapor thrown from the crater and the surrounding regolith layer. Physical phenomena occurring during large meteoroid impacts can be modeled with the aid of active rocket experiments, which involve the release of some gaseous substance in near-Earth space. New vistas in investigation of shock processes in natural dusty plasmas are determined.

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Section: Large Meteoroid Impacts and Transient Atmospheressupporting

confidence: 48%

Section: Large Meteoroid Impacts and Transient Atmospheresmentioning

confidence: 99%

Section: Large Meteoroid Impacts and Transient Atmospheresmentioning

confidence: 99%

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Charged dust and shock phenomena in the Solar System

Popel

Gisko

2006

Nonlin. Processes Geophys.

136

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“…These phenomena result in the formation of strongly correlated struc-tures (solitons, cavitons, etc. ), generation of strong magnetic fields, heating, and effective particle acceleration [1][2][3][4][5][6][7][8][9][10].…”

Section: Discussionmentioning

confidence: 99%

Modulational interactions in quantum plasmas

et al. 2013

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A formalism for treating modulational interactions of electrostatic fields in collisionless quantum plasmas is developed, based on the kinetic Wigner-Poisson model of quantum plasma. This formalism can be used in a range of problems of nonlinear interaction between electrostatic fields in a quantum plasma, such as development of turbulence, self-organization, as well as transition from the weak turbulent state to strong turbulence. In particular, using this formalism, we obtain the kinetic quantum Zakharov equations, that describe nonlinear coupling of high frequency Langmuir waves to low frequency plasma density variations, for cases of non-degenerate and degenerate plasma electrons.

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“…Following the general method for treating wave-wave interactions, 32,36,[43][44][45][46] we derive the general dispersion relation for the modulational instability of a constant amplitude CPEM-EC pump wave E 0 expðÀix 0 t þ ik 0 Á rÞ, where E 0 is the electric field amplitude, and x 0 ðk 0 Þ the frequency and (wave vector) of the pump wave. Thus, we decompose the electric field as E ?…”

Section: Nonlinear Dispersion Relationsmentioning

confidence: 99%

Nonlinear propagation of coherent electromagnetic waves in a dense magnetized plasma

2012

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We present an investigation of the nonlinear propagation of high-frequency coherent electromagnetic waves in a uniform quantum magnetoplasma. Specifically, we consider nonlinear couplings of right-hand circularly polarized electromagnetic-electron-cyclotron (CPEM-EC) waves with dispersive shear Alfvén (DSA) and dispersive compressional Alfvén (DCA) perturbations in plasmas composed of degenerate electron fluids and non-degenerate ion fluids. Such interactions lead to amplitude modulation of the CPEM-EC wave packets, the dynamics of which is governed by a threedimensional nonlinear Schrödinger equation (NLSE) with the frequency shift arising from the relativistic electron mass increase in the CPEM-EC fields and density perturbations associated with the DSA and DCA perturbations. Accounting for the electromagnetic and quantum forces, we derive the evolution equation for the DSA and DCA waves in the presence of the magnetic field-aligned ponderomotive force of the CPEM-EC waves. The NLSE and the driven DSA and DCA equations are then used to investigate the modulational instability. The relevance of our investigation to laser-plasma interaction experiments and the cores of white dwarf stars is pointed out. V C 2012 American Institute of Physics. [http://dx

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Theory of modulational interactions in plasmas in the presence of an external magnetic field

Cited by 43 publications

References 97 publications

Charged dust and shock phenomena in the Solar System

Charged dust and shock phenomena in the Solar System

Modulational interactions in quantum plasmas

Nonlinear propagation of coherent electromagnetic waves in a dense magnetized plasma

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