Solitary and blow-up electrostatic excitations in rotating magnetized electron-positron-ion plasmas

Details Solitary and blow-up electrostatic excitations in rotating magnetized electron-positron-ion plasmas Solitary and blow-up electrostatic excitations in rotating magnetized electron-positron-ion plasmas

Mar 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009njph...11c3028m&link_type=abstract

New Journal of Physics, Volume 11, Issue 3, pp. 033028 (2009).

Physics

8

Scientific paper

The nonlinear dynamics of a rotating magnetoplasma consisting of electrons, positrons and stationary positive ions is considered. The basic set of hydrodynamic and Poisson equations are reduced to a Zakharov-Kuznetsov (ZK) equation for the electric potential. The ZK equation is solved by applying an improved modified extended tanh-function method (2008 Phys. Lett. A 372 5691) and its characteristics are investigated. A set of new solutions are derived, including localized solitary waves, periodic nonlinear waveforms and divergent (explosive) pulses. The characteristics of these nonlinear excitations are investigated in detail.

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