Nonplanar Ion-Acoustic Solitons in Electron-Positron-Ion Quantum Plasmas
S. A. Khan1,2,3, S. Mahmood4, Arshad M. Mirza5
1Department of Physics, COMSATS Institute of Information Technology, Islamabad, Pakistan2National Centre for Physics, Quaid-i-Azam University Campus, Islamabad, Pakistan3Department of Physics, Government College Bagh, AJK, Pakistan4Theoretical Plasma Physics Division, PINSTECH, PO Nilore Islamabad, Pakistan5Theoretical Plasma Physics Group, Department of Physics, Quaid-i-Azam University, Islamabad 45320, Pakistan
Nonplanar Ion-Acoustic Solitons in Electron-Positron-Ion Quantum Plasmas
S. A. Khan1,2, S. Mahmood3, Arshad M. Mirza4
1Department of Physics, COMSATS Institute of Information Technology, Islamabad, Pakistan2National Centre for Physics, Quaid-i-Azam University Campus, Islamabad, Pakistan3Department of Physics, Government College Bagh, AJK, Pakistan4Theoretical Plasma Physics Division, PINSTECH, PO Nilore Islamabad, Pakistan5Theoretical Plasma Physics Group, Department of Physics, Quaid-i-Azam University, Islamabad 45320, Pakistan
摘要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 different geometries.
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 different geometries.
S. A. Khan;;S. Mahmood;Arshad M. Mirza. Nonplanar Ion-Acoustic Solitons in Electron-Positron-Ion Quantum Plasmas[J]. 中国物理快报, 2009, 26(4): 45203-045203.
S. A. Khan, S. Mahmood, Arshad M. Mirza. Nonplanar Ion-Acoustic Solitons in Electron-Positron-Ion Quantum Plasmas. Chin. Phys. Lett., 2009, 26(4): 45203-045203.
2009, Vol. 26 
