| PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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Evolution of a Cold Non-neutral Electron–Positron Plasma Slab |
| You-Mei Wang1, M. Y. Yu2,3**, L. Stenflo4, A. R. Karimov5,6 |
1Department of Physics, School of Science, Hangzhou Dianzi University, Hangzhou 310018
2Institute for Fusion Theory and Simulation, Department of Physics, Zhejiang University, Hangzhou 310027
3Institute for Theoretical Physics I, Ruhr University, Bochum D-44789, Germany
4Department of Physics, Link?ping University, Link?ping SE-58183, Sweden
5Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13/19, Moscow 127412, Russia
6Department of Electrophysical Facilities, National Research Nuclear University MEPhI, Kashirskoye shosse 31, Moscow 115409, Russia
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| Cite this article: |
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You-Mei Wang, M. Y. Yu, L. Stenflo et al 2016 Chin. Phys. Lett. 33 085205 |
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Abstract Evolution of a non-neutral cold electron–positron plasma slab is investigated. Initially the slab consists of a quasineutral plasma core bounded on both sides by layers containing only positrons (or electrons). Results from a nonperturbative, or mathematically exact, analysis of the governing fluid conservation equations and the Poisson equation show that despite their equal mass and charge magnitude, the electron and positron fronts can expand separately as well as a single fluid, and that nonlinear surface oscillations can be excited on the expansion fronts.
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Received: 18 March 2016
Published: 31 August 2016
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| PACS: |
52.27.Jt
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(Nonneutral plasmas)
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52.35.Mw
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(Nonlinear phenomena: waves, wave propagation, and other interactions (including parametric effects, mode coupling, ponderomotive effects, etc.))
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52.27.Ep
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(Electron-positron plasmas)
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52.30.Ex
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(Two-fluid and multi-fluid plasmas)
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