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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2512.17269 |
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| _version_ | 1866914209765261312 |
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| author | Ouyang, Yifei Zhu, Ping Ng, Chung-Sang |
| author_facet | Ouyang, Yifei Zhu, Ping Ng, Chung-Sang |
| contents | In this work, the asymptotic state of nonlinear Landau damping in one-dimensional plasma has been examined using a quasi-linear model and a second-order symplectic integrator. The dispersion relation of the plateau distribution function for the steady-state solution of the quasi-linear mode is extended to the complex plane and compared with the nonlinear simulation. We determine that the asymptotic state of the collisionless plasma is a multi-wave BGK structure. This structure is characterized by multiple vortices in phase space, which correspond to distinct peaks in the frequency-wavenumber (ω, k) spectrum of the electric field |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_17269 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Asymptotic state of nonlinear Landau damping in one-dimensional plasma Ouyang, Yifei Zhu, Ping Ng, Chung-Sang Plasma Physics In this work, the asymptotic state of nonlinear Landau damping in one-dimensional plasma has been examined using a quasi-linear model and a second-order symplectic integrator. The dispersion relation of the plateau distribution function for the steady-state solution of the quasi-linear mode is extended to the complex plane and compared with the nonlinear simulation. We determine that the asymptotic state of the collisionless plasma is a multi-wave BGK structure. This structure is characterized by multiple vortices in phase space, which correspond to distinct peaks in the frequency-wavenumber (ω, k) spectrum of the electric field |
| title | Asymptotic state of nonlinear Landau damping in one-dimensional plasma |
| topic | Plasma Physics |
| url | https://arxiv.org/abs/2512.17269 |