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arXiv 1304.2686physics.atom-phquant-ph
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库仑和双中心系统电离中时间延迟的解释

Interpretation of the time delay in the ionization of Coulomb and two-center systems

Vladislav V. Serov, Vladimir L. Derbov, Tatyana A. Sergeeva

摘要:

考虑了电离过程中电子从库仑中心和双中心系统中脱离的时间延迟。它表明,阿秒条纹,最常用的方法的时间延迟测量,可以正式描述放置在一个虚拟的检测器的到达时间延迟在一定的距离从系统的中心。这种方法允许推导一个简单的库仑激光耦合公式,完全符合数值解的含时薛定谔方程的结果。研究了氢分子电离的时间延迟与能量、角动量投影和方位角量子数的关系。最后,我们提出了奇异性的物理解释,所产生的时间延迟的正式表达时,适用于电离的分子氢。

英文摘要:

We consider the time delay of electron detachment from a Coulomb center and two-center systems in the process of ionization. It is shown that the attosecond streaking, most usual method of time delay measure, can be formally described by placing a virtual detector of the arrival time delay at a certain distance from the center of the system. This approach allows derivation of a simple formula for Coulomb-laser coupling that perfectly agrees with the results of numerical solution of the time-dependent Schrodinger equation. The dependence of the time delay upon the energy, the angular momentum projection, and the azimuthal quantum number is studied for the ionization of molecular hydrogen ion. Finally, we propose a physical interpretation of singularities, arising when the formal expression for the time delay is applied to the ionization of molecular hydrogen.

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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