Kinetic theory of transverse plasmons in pair plasmas

AbstractA set of nonlinear governing equations for interactions of transverse plasmons with pair plasmas is derived from Vlasov–Maxwell equations. It is shown the ponderomotive force induced by high-frequency transverse plasmons will expel the pair particles away, resulting in the formation of density cavity in which transverse plasmons are trapped. Numerical results show the envelope of wave fields will collapse and break into a filamentary structure due to the spatially inhomogeneous growth rate. The results obtained would be useful for understanding the nonlinear propagation behavior of intense electromagnetic waves in pair plasmas.

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Photon polarizability and its effect on the dispersion of plasma waves

Journal of Plasma Physics ◽

10.1017/s0022377817000198 ◽

2017 ◽

Vol 83 (2) ◽

Author(s):

I. Y. Dodin ◽

D. E. Ruiz

Keyword(s):

High Frequency ◽

Ponderomotive Force ◽

Plasma Waves ◽

Detailed Calculation ◽

Governing Equations ◽

Langmuir Waves ◽

Electron Fluid ◽

Ponderomotive Forces ◽

Linear Plasma

High-frequency photons travelling in plasma exhibit a linear polarizability that can influence the dispersion of linear plasma waves. We present a detailed calculation of this effect for Langmuir waves as a characteristic example. Two alternative formulations are given. In the first formulation, we calculate the modified dispersion of Langmuir waves by solving the governing equations for the electron fluid, where the photon contribution enters as a ponderomotive force. In the second formulation, we provide a derivation based on the photon polarizability. Then, the calculation of ponderomotive forces is not needed, and the result is more general.

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Nonorthogonality andκ-Dependence Eccentricity of Polarized Electromagnetic Waves in CPT-Even Lorentz Violation

Advances in High Energy Physics ◽

10.1155/2017/3050724 ◽

2017 ◽

Vol 2017 ◽

pp. 1-10 ◽

Cited By ~ 1

Author(s):

Thiago Prudêncio ◽

Humberto Belich

Keyword(s):

Magnetic Field ◽

Electromagnetic Wave ◽

Electromagnetic Waves ◽

Maxwell Equations ◽

Lorentz Violation ◽

Elliptical Polarization ◽

Wave Fields ◽

Lorentz Symmetry Breaking ◽

Elliptically Polarized ◽

The Magnetic Field

We discuss the modified Maxwell action of aKF-type Lorentz symmetry breaking theory and present a solution of Maxwell equations derived in the cases of linear and elliptically polarized electromagnetic waves in the vacuum of CPT-even Lorentz violation. We show in this case that the Lorentz violation has the effect of changing the amplitude of one component of the magnetic field, while leaving the electric field unchanged, leading to nonorthogonal propagation of electromagnetic fields and dependence of the eccentricity onκ-term. Further, we exhibit numerically the consequences of this effect in the cases of linear and elliptical polarization, in particular, the regimes of nonorthogonality of the electromagnetic wave fields and the eccentricity of the elliptical polarization of the magnetic field with dependence on theκ-term.

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Magnetization of Rydberg plasmas by electromagnetic waves

Journal of Plasma Physics ◽

10.1017/s0022377809990389 ◽

2009 ◽

Vol 76 (1) ◽

pp. 19-23 ◽

Cited By ~ 5

Author(s):

J. T. MENDONÇA ◽

NITIN SHUKLA ◽

P. K. SHUKLA

Keyword(s):

Electromagnetic Wave ◽

Magnetic Fields ◽

High Frequency ◽

Large Amplitude ◽

Electromagnetic Waves ◽

Ponderomotive Force

AbstractIt is shown that the ponderomotive force of a large-amplitude electromagnetic wave in Rydberg plasmas can generate quasi-stationary magnetic fields. The present result can account for the origin of seed magnetic fields in the ultracold Rydberg plasmas when they are irradiated by the high-frequency electromagnetic wave.

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New Approach to the Theory of Circular Dichroism

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19981187 ◽

1998 ◽

Vol 63 (8) ◽

pp. 1187-1201 ◽

Cited By ~ 1

Author(s):

Jaroslav Zamastil ◽

Lubomír Skála ◽

Petr Pančoška ◽

Oldřich Bílek

Keyword(s):

Electromagnetic Wave ◽

Circular Dichroism ◽

Electromagnetic Waves ◽

Maxwell Equations ◽

Optically Active ◽

Semiclassical Approach ◽

New Approach ◽

Isotropic Media ◽

New Formula ◽

Circular Dichroïsm

Using the semiclassical approach for the description of the propagation of the electromagnetic waves in optically active isotropic media we derive a new formula for the circular dichroism parameter. The theory is based on the idea of the time damped electromagnetic wave interacting with the molecules of the sample. In this theory, the Lambert-Beer law need not be taken as an empirical law, however, it follows naturally from the requirement that the electromagnetic wave obeys the Maxwell equations.

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Electromagnetic waves

10.1093/oso/9780198786399.003.0033 ◽

2018 ◽

Author(s):

Nathalie Deruelle ◽

Jean-Philippe Uzan

Keyword(s):

Plane Wave ◽

Electromagnetic Waves ◽

Maxwell Equations ◽

Plane Waves ◽

Geometrical Optics ◽

Particle Detection ◽

Spatial Coordinates ◽

A Charge

This chapter examines solutions to the Maxwell equations in a vacuum: monochromatic plane waves and their polarizations, plane waves, and the motion of a charge in the field of a wave (which is the principle upon which particle detection is based). A plane wave is a solution of the vacuum Maxwell equations which depends on only one of the Cartesian spatial coordinates. The monochromatic plane waves form a basis (in the sense of distributions, because they are not square-integrable) in which any solution of the vacuum Maxwell equations can be expanded. The chapter concludes by giving the conditions for the geometrical optics limit. It also establishes the connection between electromagnetic waves and the kinematic description of light discussed in Book 1.

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Scattering of electromagnetic waves by hybrid waves in a two-electron-temperature plasma

Journal of Plasma Physics ◽

10.1017/s002237780001597x ◽

1991 ◽

Vol 46 (1) ◽

pp. 99-106 ◽

Cited By ~ 3

Author(s):

S. K. Sharma ◽

A. Sudarshan

Keyword(s):

Growth Rate ◽

Electron Temperature ◽

High Frequency ◽

Electromagnetic Waves ◽

Low Frequency ◽

Lower Hybrid ◽

Stimulated Scattering ◽

Coupled Modes ◽

Temperature Plasma ◽

Electrostatic Perturbation

In this paper, we use the hydrodynamic approach to study the stimulated scattering of high-frequency electromagnetic waves by a low-frequency electrostatic perturbation that is either an upper- or lower-hybrid wave in a two-electron-temperature plasma. Considering the four-wave interaction between a strong high-frequency pump and the low-frequency electrostatic perturbation (LHW or UHW), we obtain the dispersion relation for the scattered wave, which is then solved to obtain an explicit expression for the growth rate of the coupled modes. For a typical Q-machine plasma, results show that in both cases the growth rate increases with noh/noc. This is in contrast with the results of Guha & Asthana (1989), who predicted that, for scattering by a UHW perturbation, the growth rate should decrease with increasing noh/noc.

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