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| Paper IPM / P / 6785 |
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| Abstract: | |||||||||||
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Propagation of an intense laser pulse in a cold electron-ion
plasma is considered. Starting with the fully relativistic
equations, for pancake-shaped pulses, a one-dimensional nonlinear
Schrodinger equation is derived. It is shown, in quasi-stationary
stage, both localized and cusp solution exist and relativistic
effects cause solitons to move slower as their amplitude
increases. These observations indicate particle-like behavior for
localized solutions.
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