Atomic processes with twisted electrons
Atomic processes with twisted electrons
复制标题
DOI：
10.1088/1742-6596/1412/5/052013
复制
发表时间：
2020-01
期刊：
影响因子：
--
通讯作者：
V. Zaytsev;A. Surzhykov;V. Serbo;V. P. Kosheleva;M. E. Groshev;V. Yerokhin;V. Shabaev;T. Stöhlker
中科院分区：
文献类型：
--
作者：
V. Zaytsev;A. Surzhykov;V. Serbo;V. P. Kosheleva;M. E. Groshev;V. Yerokhin;V. Shabaev;T. Stöhlker
介绍了具有扭曲电子的基本原子过程的全相对论性非微扰计算的现状。特别是，弹性（莫特）散射，辐射复合，并首次考虑了轫致辐射过程。电子-离子相互作用以一种非摄动的方式被解释，这允许对重系统获得可靠的结果。在弹性散射和非弹性散射中，我们分别研究了入射电子的“扭曲度”对发射电子和光子的角度和极化特性的影响。研究发现，在所有考虑的过程中，这些特性都与涡旋电子束的打开角度有很大的关系。
The present status of the fully-relativistic nonperturbative calculations of the fundamental atomic processes with twisted electrons is presented. In particular, the elastic (Mott) scattering, the radiative recombination, and for the very first time, the Bremsstrahlung processes are considered. The electron-ion interaction is accounted for in a nonperturbative manner, that allows obtaining reliable results for heavy systems. We investigate the influence of the “twistedness” of the incoming electron on the angular and polarization properties of the emitted electrons and photons for the elastic and inelastic scattering, respectively. It is found that these properties exhibit a strong dependence on the opening angle of the vortex electron beam in all processes considered.