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Please use this identifier to cite or link to this item: http://eprint.iitd.ac.in/handle/2074/555

Title: Acoustic modes in a dusty plasma
Authors: Prasad, P V Siva Rama
Keywords: dust ion acoustic
acoustic modes
dissipation
equilibrium
Issue Date: 1998
Citation: Physics Letters A, 239(6), 378-384
Abstract: The propagation of the dust ion acoustic and dust acoustic modes in a dusty plasma is studied. The effect of the coupling of the charge fluctuation on the dust particles to the modes is taken into account self-consistently. It is found that the charge fluctuation leads to frequency down shift as well as dissipation of the modes. For the dust ion acoustic modes, these are significant only when the frequency characterizing the rate of capture of electrons by the dust particles in the equilibrium state is of the order of the frequency of the mode, and the mode can propagate without significant dissipation only when its frequency is well above this characteristic frequency. For the dust acoustic modes, these are significant only when the frequency characterizing the rate of capture of ions by the dust particles in the equilibrium state is of the order of the frequency of the mode, and the mode can propagate without significant dissipation only when its frequency is well above this characteristic frequency.
URI: http://eprint.iitd.ac.in/dspace/handle/2074/555
Appears in Collections:Physics

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