Plasma Oscillations and Landau Damping in a Relativistic Gas
Plasma Oscillations and Landau Damping in a Relativistic Gas
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DOI：
10.1063/1.1706486
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发表时间：
1962
影响因子：
4.6
通讯作者：
B. Buti
中科院分区：
文献类型：
--
作者：
B. Buti
研究了相对论气体中等离子体振荡的朗道阻尼问题，得到了色散关系和阻尼系数在非相对论和相对论极限下的渐近形式.在相对论的限制，它被发现，而阻尼是非常强的情况下，相速度是小的光速相比，它是不存在的，当相速度超过光速。此外，在前一种情况下，在极端的相对论极限的阻尼成为独立的等离子体温度。
The problem of Landau damping in plasma oscillations is studied in a relativistic gas and the asymptotic forms of the dispersion relation and the damping coefficient are obtained in the non‐relativistic as well as in the relativistic limits. In the relativistic limit it is found that while the damping is very strong in the case where the phase velocity is small compared to the velocity of light, it is absent when the phase velocity exceeds the velocity of light. Moreover, in the former case, in the extreme relativistic limit the damping becomes independent of the plasma temperature.