Abstract
Propagation of arbitrary amplitude solitary waves is investigated in an unmagnetized quantum pair-ion plasma through the usage of Sagdeev pseudopotential approach in the framework of quantum hydrodynamics model. Bohm potential is elucidated to have significant impact on the structure of solitary wave. We would like to demonstrate that the regions of stability for the solitary waves of this quantum plasma system are well determined by studying the phase portrait. Analytical calculations are employed to simplify the basic equations, which are then studied numerically. The numerical analysis of Sagdeev potential for small value of quantum diffraction parameter(H) shows that for such plasma, there exists only compressive solitons. The effect of different plasma parameters on the solitonic structure are traced .
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Dutta, D. Arbitrary amplitude solitary waves in an unmagnetized quantum pair-ion plasma. Indian J Phys 90, 709–715 (2016). https://doi.org/10.1007/s12648-015-0792-7
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DOI: https://doi.org/10.1007/s12648-015-0792-7