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arXiv 0807.0754hep-th
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动力辅助Schwinger机构

Dynamically assisted Schwinger mechanism

Ralf Schützhold, Holger Gies, Gerald Dunne

摘要:

我们研究了由一个强的、缓慢变化的电场(Schwinger效应)和一个弱的、快速变化的电磁场(动力学对的产生)所引起的狄拉克真空中的电子-正电子对的产生。在亚临界制度,这两种机制分别被强烈抑制,它们的组合的影响产生一个对创建率是{显着}增强。直观地说,强电场降低了动力学粒子产生的阈值--或者,快速电磁场为施温格机制产生了额外的种子。这些发现可能与计划中的超高强度激光有关。

英文摘要:

We study electron-positron pair creation {from} the Dirac vacuum induced by a strong and slowly varying electric field (Schwinger effect) which is superimposed by a weak and rapidly changing electromagnetic field (dynamical pair creation). In the sub-critical regime where both mechanisms separately are strongly suppressed, their combined impact yields a pair creation rate which is {dramatically} enhanced. Intuitively speaking, the strong electric field lowers the threshold for dynamical particle creation -- or, alternatively, the fast electromagnetic field generates additional seeds for the Schwinger mechanism. These findings could be relevant for planned ultra-high intensity lasers.

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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