| PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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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 |
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| Cite this article: |
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GUO Jun 2010 Chin. Phys. Lett. 27 025201 |
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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.
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| Keywords:
52.35.Fp
52.65.Rr
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Received: 22 July 2009
Published: 08 February 2010
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| PACS: |
52.35.Fp
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(Electrostatic waves and oscillations (e.g., ion-acoustic waves))
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52.65.Rr
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(Particle-in-cell method)
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