Suppressing the effect of polarization in tunneling ionization of the hydrogen atom

被引：3
|
作者：
Hao, XiaoLei [1 ]
Zhang, XuLing [2 ,3 ]
Li, WeiDong [2 ,3 ]
Chen, Jing [1 ,4 ]
机构：
[1] Inst Appl Phys & Computat Math, Beijing 100088, Peoples R China
[2] Shanxi Univ, Inst Theoret Phys, Taiyuan 030006, Peoples R China
[3] Shanxi Univ, Dept Phys, Taiyuan 030006, Peoples R China
[4] Peking Univ, Ctr Appl Phys & Technol, Beijing 100084, Peoples R China
来源：
PHYSICAL REVIEW A | 2013年 / 87卷 / 04期
基金：
中国国家自然科学基金;
关键词：
ABOVE-THRESHOLD IONIZATION; FIELD; HELIUM; IONS;
D O I：
10.1103/PhysRevA.87.045403
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
An analytic expression for the tunneling ionization rate of hydrogen atom in a static electric field after taking into account higher-order perturbation of the external field is derived. The formula shows a suppression effect on the ionization rate compared with the conventional tunneling formula and well agrees with the result of numerical solution of time-dependent Schrodinger equation. Our analysis shows that the suppression effect can be attributed to the polarization of the initial wave function induced by the external electric field.
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页数：4
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