Head-on collision of quantum ion-acoustic solitary waves in a dense electron-positron-ion plasma |
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Authors: | S.K. El-Labany W.F. El-Taibany P.K. Shukla |
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Affiliation: | a Department of Physics, Faculty of Science, Damietta Branch, Mansoura University, Damietta El-Gedida, 34517, Egypt b Institut für Theoretische Physik IV, Fakultät für Physik und Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany |
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Abstract: | The characteristics of the head-on collision between two-quantum ion-acoustic solitary waves (QIASWs) in a dense electron-positron-ion plasma are investigated. Using the extended Poincaré-Lighthill-Kuo (PLK) method, the Korteweg-de Vries (KdV) equations and the analytical phase shifts, after two QIASWs collision occurs, are derived. This study is a first attempt to illustrate the effects of both of the quantum diffraction corrections and the Fermi temperature ratio of positrons to electrons on the phase shifts. It is found that the electron-positron-ion plasma parameters modify significantly the phase shifts of the two colliding solitary waves. |
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Keywords: | Head-on collision Electron-positron-ion plasma Quantum plasma Korteweg-de Vries equation Phase shifts |
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