Excited-state resonance tunneling in strong-field ionization

被引：4

作者：

Jia, Lijuan ^{[1
]}

Xing, Haijun ^{[1
]}

Fu, Libin ^{[1
]}

机构：

[1] China Acad Engn Phys, Grad Sch, 10 Xibeiwang East Rd, Beijing 100193, Peoples R China

来源：

PHYSICAL REVIEW A | 2022年 / 106卷 / 02期

基金：

中国国家自然科学基金;

关键词：

ATTOCLOCK; DYNAMICS; GENERATION;

D O I：

10.1103/PhysRevA.106.022814

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study the tunneling dynamics of a system with two bound states. We find that the system can be effectively described by a two-level leakage cavity model, with which we can reproduce the dynamics of tunneling ionization. It shows that tunneling via the excited-state resonance dominates over the ground-state tunneling within the field strength considered, where the electron prefers jumping to the excited-state resonance channel first and then tunneling out. Moreover, several key parameters of the system naturally emerge in our two-level model. Especially, one of the parameters is the physical correspondence of the tunneling time obtained from the ground-state tunneling.

引用

页数：6

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