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Fully nonlinear electrostatic waves in electron–positron plasmas

Published online by Cambridge University Press:  18 December 2009

GAIMIN LU,
YUE LIU,
YOUMEI WANG,
L. STENFLO,
S. I. POPEL and
M. Y. YU
GAIMIN LU
Affiliation:
School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China (gmlv@mail.dlut.edu.cn)Institute for Fusion Theory and Simulation, Department of Physics, Zhejiang University, Hangzhou 310027, China
YUE LIU
Affiliation:
School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China (gmlv@mail.dlut.edu.cn)
YOUMEI WANG
Affiliation:
Institute for Fusion Theory and Simulation, Department of Physics, Zhejiang University, Hangzhou 310027, ChinaInstitute of Materials Physics, Hangzhou Dianzi University, Hangzhou 310018, China
L. STENFLO
Affiliation:
Department of Physics, Umeå University, SE-90187 Umeå, SwedenDepartment of Physics, Linköping University, SE-58183 Linköping, Sweden
S. I. POPEL
Affiliation:
Institute for Dynamics of Geospheres, Russian Academy of Sciences, 119334 Moscow, Russia
M. Y. YU
Affiliation:
Institute for Fusion Theory and Simulation, Department of Physics, Zhejiang University, Hangzhou 310027, ChinaInstitute for Theoretical Physics I, Ruhr University, D-44780 Bochum, Germany
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Abstract

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Fully nonlinear electrostatic waves in a plasma containing electrons, positrons, and ions are investigated by solving the governing equations exactly. It is found that both smooth and spiky quasistationary waves exist, and large-amplitude waves necessarily have large-phase velocities, but small-amplitude waves can be both fast and slow.

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