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arXiv 1812.04089hep-phphysics.plasm-ph
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观察热Schwinger对产生

Observing Thermal Schwinger Pair Production

Oliver Gould, Stuart Mangles, Arttu Rajantie, Steven Rose, Cheng Xie

摘要:

我们研究的可能性,观察施温格对生产增强了热浴的光子。我们考虑了从纯Schwinger生产到纯热生产的温度和电场强度的全范围,并确定了最有前途和最有趣的制度。特别是,我们确定温度的$\sim 20~\mathrm{keV}/k_B$和磁场强度的$\sim 10^{23}~\mathrm{Wcm}^{-2}$对生产将是可观察的。在这种情况下,在Schwinger速率上的热增强是指数大的,并且是由于在环路膨胀中的任何有限阶处不可见的效应。因此,这种情况下的对产生可以被描述为比通常的施温格过程(出现在一个循环中)更具非微扰性。不幸的是,如此高的温度似乎是可预见的技术所无法达到的,尽管具有可比能量密度的非热光子分布是可能的。我们建议的可能性,类似的非微扰增强可能会超出平衡,并提出了一个实验方案来测试这一点。

英文摘要:

We study the possibility of observing Schwinger pair production enhanced by a thermal bath of photons. We consider the full range of temperatures and electric field intensities from pure Schwinger production to pure thermal production, and identify the most promising and interesting regimes. In particular, we identify temperatures of $\sim 20~\mathrm{keV}/k_B$ and field intensities of $\sim 10^{23}~\mathrm{Wcm}^{-2}$ where pair production would be observable. In this case, the thermal enhancement over the Schwinger rate is exponentially large and due to effects which are not visible at any finite order in the loop expansion. Pair production in this regime can thus be described as more nonperturbative than the usual Schwinger process, which appears at one loop. Unfortunately, such high temperatures appear to be out of reach of foreseeable technologies, though nonthermal photon distributions with comparable energy densities are possible. We suggest the possibility that similar nonperturbative enhancements may extend out of equilibrium and propose an experimental scheme to test this.

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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