Trident in plane waves: coherence, exchange and space-time inhomogeneity
Trident in plane waves: coherence, exchange and space-time inhomogeneity
复制标题
平面波中的三叉戟：相干性、交换性和时空不均匀性
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
G. Torgrimsson
中科院分区：
文献类型：
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作者：
V. Dinu;G. Torgrimsson
研究了非均匀平面波背景场中的三叉戟过程。对于任意形状的平面波，我们得到了概率中所有项的紧凑解析表达式，包括交换部分。我们利用光前时间积分的复变形对概率进行数值计算，并推导出各种解析近似。我们的结果提供了对一步和交换部分的概率相对于两步过程的重要性的见解，以及对局部常数场近似的收敛性。
We study the trident process in inhomogeneous plane wave background fields. We obtain compact analytical expressions for all terms in the probability, including the exchange part, for an arbitrarily shaped plane wave. We evaluate the probability numerically using complex deformation of lightfront time integrals and derive various analytical approximations. Our results provide insights into the importance of the one-step and exchange parts of the probability relative to the two-step process, and into the convergence to the locally constant field approximation.