Generation and evolution of magnetic field in the relativistic plasma following q-nonextensive distribution

Generation and evolution of magnetic field in the relativistic plasma following q-nonextensive distribution
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相对论等离子体中遵循 q 非广延分布的磁场的产生和演化

DOI:
10.1063/1.4976981
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发表时间:
2017-02
期刊:
影响因子:
2.2
通讯作者:
Zhu Yun
Zhu Yun
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Lin Fu-Jun;Chen Zong-Hua;Li Xiao-Qing;Liao Jing-Jing;Zhu Yun

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在高频电磁辐射作用下,天体物理等离子体和激光产生的等离子体中可以通过波-波和波-粒子相互作用产生千兆高斯准稳态磁场。在由Q非广泛分布的极端相对论电子组成的等离子体中,得到了关于这个场的一组控制方程。数值结果表明,初始场是不稳定的,可以坍塌产生各种空间间歇磁通管。我们还可以发现,磁场的行为很大程度上依赖于非扩展指数Q,这可能有助于理解磁场湍流。
A GigaGauss quasi-steady magnetic field can be generated in astrophysical plasmas and laser-produced plasmas with high-frequency electromagnetic radiation through wave-wave and wave-particle interactions. A set of governing equations for this field are obtained in the plasma consisting of ultra-relativistic electrons following q-nonextensive distribution. The numerical results show that the initial field is unstable and can collapse to generate various spatially intermittent magnetic flux tubes. It can also be found that the behavior of the magnetic field is greatly dependent on the nonextensive index q, which may be helpful in understanding the magnetic turbulence.
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发表时间: 1996-11
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