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arXiv 1502.05319physics.plasm-ph
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高强度场中的辐射反应

Radiation Reaction in High-Intensity Fields

Keita Seto

摘要:

在P. A. M.狄拉克在1938年提出的辐射反应模型中,许多作者都试图重新表述这种所谓的辐射反应。最近,这种效应在超强激光-电子(等离子体)相互作用中变得重要。在我们最近的研究中,我们发现了利用QED真空涨落稳定辐射反应的方法[PTEP 2014,043 A01(2014),PTEP 2015,023 A01(2015)]。另一方面,当激光强度高于1022 W/cm 2时,应考虑高强度入射激光场对辐射场的修改,这可以通过下一代超短脉冲10 PW激光器来实现,例如正在建设的ELI-NP设施。本文在Dirac模型的基础上,提出了用运行电荷-质量方法来描述高强度外场作用下的QED同步辐射,并利用QED真空涨落来稳定QED真空涨落。

英文摘要:

After the development of a radiating electron model by P. A. M. Dirac in 1938, many authors have tried to reformulate this model so-called radiation reaction. Recently, this effect has become important in ultra-intense laser-electron (plasma) interactions. In our recent research, we found the stabilization method of radiation reaction by the QED vacuum fluctuation [PTEP 2014, 043A01 (2014), PTEP 2015, 023A01 (2015)]. On the other hand, the modification of the radiated field by highly intense incoming laser fields should be taken into account when the laser intensity is higher than 1022W/cm2, which could be achieved by the next generation ultra-short pulse 10PW lasers, like the ones under construction for the ELI-NP facility. In this paper, I propose the running charge-mass method for the description of the QED-based synchrotron radiation by high-intensity external fields with the stabilization by the QED vacuum fluctuation as an extension to the model by Dirac.

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