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arXiv 2108.07596physics.plasm-phastro-ph.HEhep-phhep-th
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双流不稳定性的量子电动力学效应

Quantum electrodynamic effects on the two-stream instability

Antoine Bret

摘要:

我们考虑了双流不稳定性的量子电动力学修正。我们发现,除非考虑引导磁场$\mathbf{B}_0$,否则这些修正在一阶时消失。相对于不稳定性的经典版本,量子电动力学效应将最不稳定的波矢及其增长率降低了一个因子$\sqrt{1+ξ}$,其中$ξ= \fracα{9π} (B_0/B_{cr})^2$是精细结构常数,$B_{cr}$是Schwinger临界磁场。虽然是在冷态系统下得到的,但这些结果对动力学情况是有效的。结果在$ξ\ll 1$范围内有效,实际上,直到$ξ$中的线性校正。

英文摘要:

We consider the quantum electrodynamic corrections to the two-stream instability. We find these corrections vanish at first order unless a guiding magnetic field $\mathbf{B}_0$ is considered. With respect to the classical version of the instability, quantum electrodynamic effects reduce the most unstable wave vector and its growth rate by a factor $\sqrt{1+ξ}$, with $ξ= \fracα{9π} (B_0/B_{cr})^2$, where $α$ is the fine-structure constant and $B_{cr}$ the Schwinger critical magnetic field. Although derived for a cold system, these results are valid for the kinetic case. The results are valid in the range $ξ\ll 1$ and, actually, up to linear corrections in $ξ$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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