Higher order contribution to the propagation characteristics of low frequency transverse waves in a dusty plasma |
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Authors: | A P Misra A Roy Chowdhury S N Paul |
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Institution: | (1) High Energy Physics Division, Department of Physics, Jadavpur University, 700 032 Kolkata, India;(2) Faculty of Science, Serampore Girls’ College, 712 201 Hoogly, India |
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Abstract: | Characteristic features of low frequency transverse wave propagating in a magnetised dusty plasma have been analysed considering
the effect of dust-charge fluctuation. The distinctive behaviours of both the left circularly polarised and right circularly
polarised waves have been exhibited through the analysis of linear and non-linear dispersion relations. The phase velocity,
group velocity, and group travel time for the waves have been obtained and their propagation characteristics have been shown
graphically with the variations of wave frequency, dust density and amplitude of the wave. The change in non-linear wave number
shift and Faraday rotation angle have also been exhibited with respect to the plasma parameters. It is observed that the effects
of dust particles are significant only when the higher order contributions are considered. This may be referred to as the
‘dust regime’ in plasma. |
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Keywords: | Dust plasma transverse wave group travel time Faraday rotation angle non-linear wave number shift |
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