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Analytical Theory of the Geodesic Acoustic Mode in the Small and Large Orbit Drift Width Limits and its Application in a Study of Plasma Shaping Effect |
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| Authors: | GAO Zhe |
| Abstract: | Analytical theories of the geodesic acoustic mode (GAM) are reviewed in the small- and large-orbit drift width limits, respectively. Different physics pictures in these two limits are displayed. As an example, these two analytical methods are employed to investigate the plasma shaping effect on the frequency and collisionless damping rate of the GAM. |
| Keywords: | geodesic acoustic mode plasma shaping orbit drift width analytical theory |
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