Quantum electron-acoustic solitary waves interaction in dense electron-ion plasmas |
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Authors: | S K EL-Labany E F EL-Shamy M G El-Mahgoub |
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Institution: | (1) Department of Physics, Faculty of Science, Mansoura University, Damietta Branch, Damietta El-Gedida, 34517, Egypt;(2) Present address: Department of Physics, College of Science, King Khalid University, Abha, P.O. 9004, Kingdom of Saudi Arabia |
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Abstract: | The effects of Bohm potential on the head-on collision between two quantum electron-acoustic solitary waves (QEASWs) in two
electron species quantum plasma have been investigated using the extended Poincaré–Lighthill–Kuo (PLK) method. The analytical
phase shifts after the head-on collision of the two QEASWs are derived. Numerically, in two cases (i.e., the dense solid state
plasma and the dense astrophysical environments), the results show that the cold electron-to-hot electron number density ratio,
the quantum corrections of diffraction and Fermi temperature of hot electrons have strong effects on the nature of the phase
shifts and the trajectories of two QEASWs after collision. |
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