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Nonplanar Ion-Acoustic Solitons in Electron-Positron-Ion Quantum Plasmas |
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| Authors: | S. A. Khan S. Mahmood Arshad M. Mirza |
| Affiliation: | Department of Physics, COMSATS Institute of Information Technology, Islamabad, PakistanNational Centre for Physics, Quaid-i-Azam University Campus, Islamabad, PakistanDepartment of Physics, Government College Bagh, AJK, PakistanTheoretical Plasma Physics Division, PINSTECH, PO Nilore Islamabad, PakistanTheoretical Plasma Physics Group, Department of Physics, Quaid-i-Azam University, Islamabad 45320, Pakistan |
| Abstract: | The propagation of nonplanar quantum ion-acoustic solitary waves in a dense, unmagnetized electron-positron-ion (e-p-i) plasma are studied by using the Korteweg-de Vries (KdV) model. The quantum hydrodynamic (QHD) equations are used taking into account the quantum diffraction and quantum statistics corrections. The analytical and numerical solutions of KdV equation reveal that the nonplanar ion-acoustic solitons are modified significantly with quantum corrections and positron concentration, and behave differently in differentgeometries. |
| Keywords: | 52.35.Fp 52.35.Mw 52.27.Cm 52.27.-h |
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