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Ion-beam/plasma modes in ultradense relativistic quantum plasmas : dispersion characteristics and beam-driven instability

dc.contributor.authorElkamash, Ibrahempt_BR
dc.contributor.authorHaas, Fernandopt_BR
dc.contributor.authorKourakis, Ioannispt_BR
dc.date.accessioned2018-11-17T03:12:04Zpt_BR
dc.date.issued2017pt_BR
dc.identifier.issn1070-664Xpt_BR
dc.identifier.urihttp://hdl.handle.net/10183/184755pt_BR
dc.description.abstractA relativistic quantum-hydrodynamic plasma model is proposed, to model the propagation of electrostatic waves in an ultradense quantum electron-ion plasma in the presence of an ion beam. A dispersion relation is derived for harmonic waves, and the stability of electrostatic wavepackets is investigated. Three types of waves are shown to exist, representing a modified electron plasma (Langmuir-type) mode, a low-frequency ion acoustic mode, and an ion-beam driven mode, respectively. Stability analysis reveals the occurrence of an imaginary frequency part in three regions. The dependence of the instability growth rate on the ion beam parameters (concentration and speed) has been investigateden
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofPhysics of plasmas. Melville. Vol. 24, no. 9 (Sept. 2017), 092119, 10 p.pt_BR
dc.rightsOpen Accessen
dc.subjectPlasmas relativisticospt_BR
dc.subjectOndas eletrostáticas em plasmaspt_BR
dc.subjectPropagação de ondaspt_BR
dc.subjectFeixes de íonspt_BR
dc.subjectRelações de dispersãopt_BR
dc.titleIon-beam/plasma modes in ultradense relativistic quantum plasmas : dispersion characteristics and beam-driven instabilitypt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001052698pt_BR
dc.type.originEstrangeiropt_BR


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