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arXiv 1207.5693physics.atom-phphysics.comp-phquant-ph
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多电子原子光电离的含时受限活性空间组态相互作用

Time-dependent restricted active space Configuration Interaction for the photoionization of many-electron atoms

David Hochstuhl, Michael Bonitz

摘要:

介绍了求解含时多电子原子薛定谔方程的含时受限活性空间组态相互作用方法,并将其应用于原子光电离过程的处理.该方法是在一个非常一般的配方,并采用了广泛的常用的近似方案,如单活性电子近似,时间依赖的配置与单激发相互作用,或时间依赖的R-矩阵方法。通过计算氦原子和铍原子的光电离截面,以及铍原子的X射线-红外泵浦探测电离,证明了该方法的适用性

英文摘要:

We introduce the time-dependent restricted active space Configuration Interaction method to solve the time-dependent Schrödinger equation for many-electron atoms, and particularly apply it to the treatment of photoionization processes in atoms. The method is presented in a very general formulation and incorporates a wide range of commonly used approximation schemes, like the single-active electron approximation, time-dependent Configuration Interaction with single-excitations, or the time-dependent R-matrix method. We proof the applicability of the method by calculating the photoionization cross sections of Helium and Beryllium, as well as the X-ray--IR pump-probe ionization in Beryllium

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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