Particle Simulation of Electrostatic Waves Driven by an Electron Beam
GUO Jun
School of Mathematics and Physics, Qingdao University of Science and Technology, Qingdao 266042State Key Laboratory of Space Weather, Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100080
Particle Simulation of Electrostatic Waves Driven by an Electron Beam
GUO Jun
School of Mathematics and Physics, Qingdao University of Science and Technology, Qingdao 266042State Key Laboratory of Space Weather, Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100080
摘要A one-dimensional electrostatic particle-in-cell simulation is performed to study electrostatic wave excitation due to an electron beam in a plasma system. The excited fundamental and harmonic waves are analyzed with the fast Fourier transformation and the wavelet transformation. The second harmonic is suggested to be generated by wave-wave coupling during the nonlinear evolution, which involves forward propagating and backward propagating Langmuir waves. Furthermore, the background electrons may be heated and accelerated by the electrostatic waves.
Abstract：A one-dimensional electrostatic particle-in-cell simulation is performed to study electrostatic wave excitation due to an electron beam in a plasma system. The excited fundamental and harmonic waves are analyzed with the fast Fourier transformation and the wavelet transformation. The second harmonic is suggested to be generated by wave-wave coupling during the nonlinear evolution, which involves forward propagating and backward propagating Langmuir waves. Furthermore, the background electrons may be heated and accelerated by the electrostatic waves.
GUO Jun. Particle Simulation of Electrostatic Waves Driven by an Electron Beam[J]. 中国物理快报, 2010, 27(2): 25201-025201.
GUO Jun. Particle Simulation of Electrostatic Waves Driven by an Electron Beam. Chin. Phys. Lett., 2010, 27(2): 25201-025201.
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