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The face to face collision between two nonlinear electron acoustic solitary waves in quantum plasma is studied. Using the extended Poincare–Lighthill–Kuo method we obtain the Kortwege-de Vries equations, the phase shifts and the trajectories after face to face interaction of the two solitons. The effect of the number densities of cold and hot electrons on the two phase shifts are also investigated...
Effect of finite ion temperature on the formation of arbitrary amplitude dust ion acoustic solitary waves in unmagnetized quantum plasma is investigated using the Sagdeev’s potential approach. It is found that the ion temperature significantly affects the region of existence and formation of dust ion acoustic solitary waves in quantum plasma. The investigation shows that the solitary structure ceases...
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