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Explosive and solitary excitations in a very dense magnetoplasma
Umeå University, Faculty of Science and Technology, Department of Physics. Institut für Theoretische Physik IV, Fakultät für Physik und Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany; Nonlinear Physics Centre & Center for Plasma Science and Astrophysics, Ruhr-Universität Bochum, D-44780 Bochum, Germany; Max-Planck-Institut für extraterrestrische Physik, D-85741 Garching, Germany; GoLP/Institute of Plasmas and Nuclear Fusion, Instituto Superior Técnico, 1049-001 Lisbon, Portugal; CCLRC Centre for Fundamental Physics, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon 0X11 0QX, UK; SUPA Department of Physics, University of Strathclyde, Glasgow G 40NG, UK; School of Physics, Faculty of Science & Agriculture, University of Kwazulu-Natal, Durban 4000, South Africa; Department of Physics, CITT, Islamabad, Pakistan.
2008 (English)In: Physics Letters A, ISSN 0375-9601, E-ISSN 1873-2429, Vol. 372, no 35, 5691-5694 p.Article in journal (Refereed) PublishedText
Abstract [en]

A two-component dense magnetoplasma consisting of ions and degenerate electrons is considered. The basic set of hydrodynamic and Poisson equations are reduced to the Zakharov-Kuznetsov (ZK) equation by using the reductive perturbation technique. The basic features of the electrostatic excitations are investigated by applying a new direct method to the ZK equation. It is found that the latter has new solutions, which admit the propagation of either solitary or explosive pulses. The relevance of the new direct method to other nonlinear partial differential equations is also discussed.

Place, publisher, year, edition, pages
Amsterdam: Elsevier, 2008. Vol. 372, no 35, 5691-5694 p.
Keyword [en]
Tanh function method, ion-acoustic waves, degenerate electrons, quantum plasmas, KDV equation
National Category
Fusion, Plasma and Space Physics
URN: urn:nbn:se:umu:diva-117488DOI: 10.1016/j.physleta.2008.06.090ISI: 000259311600013OAI: diva2:910271
Available from: 2016-03-08 Created: 2016-03-01 Last updated: 2016-03-08Bibliographically approved

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Shukla, Padma Kant
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