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arXiv 2201.10863hep-phphysics.plasm-ph
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强场QED过程的电子自旋和光子极化分辨几率

Electron spin- and photon polarization-resolved probabilities of strong-field QED processes

Yue-Yue Chen, Karen Z. Hatsagortsyan, Christoph H. Keitel, Rashid Shaisultanov

摘要:

推导了在超强激光场中高能光子发射和电子-正电子对产生的全偏振分辨几率。量子电动力学蒙特卡罗程序和量子电动力学单元程序的主要目的是研究超强激光-等离子体和激光-电子束相互作用中的非线性量子电动力学过程的极化效应,以及在超强外场中的其他非线性量子电动力学过程,其涉及光子发射和对产生的多个基本过程。Baier和Katkov引入的量子算符方法用于准经典方法和局域常数场近似中的概率计算。超相对论性制度的概率给出了一个紧凑的形式,并适合于描述在强激光场的任意配置的偏振效应,使他们非常适合于应用。

英文摘要:

A derivation of fully polarization-resolved probabilities is provided for high-energy photon emission and electron-positron pair production in ultrastrong laser fields. The probabilities resolved in both electron spin and photon polarization of incoming and outgoing particles are indispensable for developing QED Monte Carlo and QED-Particle-in-Cell codes, aimed at the investigation of polarization effects in nonlinear QED processes in ultraintense laser-plasma and laser-electron beam interactions, and other nonlinear QED processes in external ultrastrong fields, which involve multiple elementary processes of a photon emission and pair production. The quantum operator method introduced by Baier and Katkov is employed for the calculation of probabilities within the quasiclassical approach and the local constant field approximation. The probabilities for the ultrarelativistic regime are given in a compact form and are suitable to describe polarization effects in strong laser fields of arbitrary configuration, rendering them very well suited for applications.

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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