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arXiv 1012.0559physics.plasm-phhep-ph
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真空极化对强laser场中湮没沟道的作用

Role of vacuum polarization for the annihilation channel in a strong laser field

S. A. Smolyansky, D. B. Blaschke, A. V. Chertilin, G. Roepke, A. V. Tarakanov

摘要:

我们认为真空极化效应的单光子湮没通道内的动力学描述的电子+电子-等离子体产生的真空中的焦点的反向传播的激光束。这就需要光子动力学方程的结构发生根本的变化。我们研究了大绝热参数γ>> 1的区域,其中光子辐射非常小。对域gamma < 1的更彻底的检查需要单独的调查。然而,探索性研究已经表明,单光子湮灭通道可以导致激光场参数的某些域(例如,对于XFEL)可用于观察的贡献。

英文摘要:

We consider vacuum polarization effects in the one-photon annihilation channel within a kinetic description of the e+ e- plasma produced from the vacuum in the focal spot of counter-propagating laser beams. This entails essential changes in the structure of the photon kinetic equation. We investigate the domain of large adiabaticity parameters gamma >> 1 where the photon radiation turns out to be very small. A more thorough examination of the domain gamma < 1 needs separate investigation. However, an exploratory study has shown that the one-photon annihilation channel can lead for some domains of laser field parameters (e.g., for the XFEL) to contributions accessible for observation.

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