Current-driven electron drift solitons |
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Authors: | Ali Ahmad H Saleem |
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Institution: | 1. National Centre for Physics (NCP), Shahdara Valley Road, 44000 Islamabad, Pakistan;2. Department of Physics, COMSATS Institute of Information Technology (CIIT) Islamabad, Pakistan |
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Abstract: | The soliton formation by the current-driven drift-like wave is investigated for heavier ion (such as barium) plasma experiments planned to be performed in future. It is pointed out that the sheared flow of electrons can give rise to short scale solitary structures in the presence of stationary heavier ions. The nonlinearity appears due to convective term in the parallel equation of motion and not because of temperature gradient unlike the case of low frequency usual drift wave soliton. This higher frequency drift-like wave requires sheared flow of electrons and not the density gradient to exist. |
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Keywords: | Electron shear flow Current-driven drift waves Nonlinear structures Solitons |
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