caa a22 4500 445865431 CHVBK 20180317145456.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1140/epjd/e2011-20332-8 doi (NATIONALLICENCE)springer-10.1140/epjd/e2011-20332-8 New longitudinal waves in electron-positron-ion quantum plasmas [Elektronische Daten] [N. Tsintsadze, L. Tsintsadze, A. Hussain, G. Murtaza] A general quantum dispersion equation for electron-positron(hole)-ion quantum plasmas is derived and studied for some interesting cases. In an electron-positron-ion degenerate Fermi gas, with or without the Madelung term, a new type of zero sound waves are found. Whereas in an electron-hole-ion plasmas a new longitudinal quantum waves are revealed, which have no analogies in quantum electron-ion plasmas. The excitation of these quantum waves by a low-density monoenergetic straight electron beam is examined. Furthermore, the Korteweg-de Vries (KdV) equation for novel quantum waves is derived and the contribution of the Madelung term in the formation of the KdV solitons is discussed. EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg, 2011 Tsintsadze N. Department of Plasma Physics, E.Andronikashvili Institute of Physics, Tbilisi, Georgia aut Tsintsadze L. Department of Plasma Physics, E.Andronikashvili Institute of Physics, Tbilisi, Georgia aut Hussain A. Salam Chair in Physics, GC University, 54000, Lahore, Pakistan aut Murtaza G. Salam Chair in Physics, GC University, 54000, Lahore, Pakistan aut The European Physical Journal D Springer-Verlag 64/2-3(2011-10-01), 447-452 1434-6060 64:2-3<447 2011 64 10053 https://doi.org/10.1140/epjd/e2011-20332-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1140/epjd/e2011-20332-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tsintsadze N. Department of Plasma Physics, E.Andronikashvili Institute of Physics, Tbilisi, Georgia aut NATIONALLICENCE 700 1- Tsintsadze L. Department of Plasma Physics, E.Andronikashvili Institute of Physics, Tbilisi, Georgia aut NATIONALLICENCE 700 1- Hussain A. Salam Chair in Physics, GC University, 54000, Lahore, Pakistan aut NATIONALLICENCE 700 1- Murtaza G. Salam Chair in Physics, GC University, 54000, Lahore, Pakistan aut NATIONALLICENCE 773 0- The European Physical Journal D Springer-Verlag 64/2-3(2011-10-01), 447-452 1434-6060 64:2-3<447 2011 64 10053 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer