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中文摘要：
采用包含组合回归的扩展的闭合轨道理论计算了平行电磁场中锂原子依赖于时间的自电离谱，并用半经典的方法解释了电离过程中的混沌现象．讨论了电离电子逃逸时间谱分形结构中隐含的各韵律段的电离轨迹，并得到了轨迹的一般规律，其中特别关注由核散射产生的特殊的逃逸轨迹的性质．具体研究了磁场对锂原子自电离混沌脉冲阵列中电子逃逸轨道和逃逸时间谱的影响．结果发现随着外加磁场的增大，电离脉冲越来越复杂，混沌现象也越明显．这显示了逃逸轨道对初始条件的敏感依赖性．
英文摘要：
Based on the extended closed-orbit theory with the combination recurrence induced by the nuclear core scattering,we calculate the time-dependent auto-ionization rate of lithium atoms in parallel electric and magnetic fields, and the chaotic behavior in the auto-ionization process is explained. A qualitative description of the shape of the ionizing trajectories from the nesting distinct fractal epistrophes is given.In particular, some special escape trajectories induced by core-scattering is obtained in configuration space. The escape time and the auto-ionization rate that exhibit a series of chaotic pulse train are discussed for different magnetic fields. We find that, with the increase of the magnetic field, the ionizing electron pulse train along with the corresponding ionized electron trajectories become more and more complicated, showing the sensitive dependence of the dynamic properties on the initial conditions.
同期刊论文项目
同项目期刊论文
Influence of dielectric microcavity on the spontaneous emission rate of atom: a perspective on the c
Short-ranged potential effects on the recurrence spectra of lithium M=1 atoms in parallel electric a
The magnetic influence of a parallel field on the ionization of a hydrogen atom in an electric field
Semiclassical calculating of conductance transmission through an open equilateral triangular billiar
Semi-classical calculation of auto-ionization rate for Lithium atoms in parallel electric and magnet
The fractal structure in the ionization dynamics of Rydberg lithium atoms in a static electric field
The fractal structure in the Rydberg lithium atoms in ionization dynamics of a static electric field
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