Advances in QED with intense background fields
Advances in QED with intense background fields
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DOI：
10.1016/j.physrep.2023.01.003
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发表时间：
2022-02
期刊：
影响因子：
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通讯作者：
A. Fedotov;A. Ilderton;F. Karbstein;B. King;D. Seipt;H. Taya;G. Torgrimsson
中科院分区：
文献类型：
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作者：
A. Fedotov;A. Ilderton;F. Karbstein;B. King;D. Seipt;H. Taya;G. Torgrimsson
即将进行的和计划中的实验将越来越强的激光和高能粒子束结合起来，将获得非线性、相对论和量子效应的新机制。这种改进的实验能力推动了QED在强背景场中的实质性进展。我们在这里回顾了在过去十年中取得的进展，重点是理论和现象学。当达到更高的强度时，有必要考虑散射粒子数和环数的高阶过程，并考虑非微扰物理（例如Schwinger效应），极端强度需要重新计算环膨胀。除了增加强度外，实验将达到更高的准确性，这些改进与理论的发展相匹配，例如近似框架，有限尺寸效应的描述以及分析的物理现象范围。已经取得实质性进展的主题包括：辐射反应，自旋和极化，非线性量子真空效应以及与其他领域的联系，包括标准模型之外的物理学。
Upcoming and planned experiments combining increasingly intense lasers and energetic particle beams will access new regimes of nonlinear, relativistic, quantum effects. This improved experimental capability has driven substantial progress in QED in intense background fields. We review here the advances made during the last decade, with a focus on theory and phenomenology. As ever higher intensities are reached, it becomes necessary to consider processes at higher orders in both the number of scattered particles and the number of loops, and to account for non-perturbative physics (e.g. the Schwinger effect), with extreme intensities requiring resummation of the loop expansion. In addition to increased intensity, experiments will reach higher accuracy, and these improvements are being matched by developments in theory such as in approximation frameworks, the description of finite-size effects, and the range of physical phenomena analysed. Topics on which there has been substantial progress include: radiation reaction, spin and polarisation, nonlinear quantum vacuum effects and connections to other fields including physics beyond the Standard Model.