The chaotic property in the autoionization of Rydberg lithium atom |
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Authors: | Zhou Hui Li Hong-Yun Gao Song Zhang Yan-Hui Jia Zheng-Mao and Lin Sheng-Lu |
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Institution: | College of Physics and Electronics, Shandong Normal
University, Jinan 250014, China |
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Abstract: | This paper presents theoretical computations of the ionization rate
of Rydberg lithium atom above the classical ionization threshold
using semiclassical approximation. The yielded random pulse trains
of the escape electrons are recorded as a function of emission time
such that allow for relating themselves to the terms of the
recurrence periods of the photoabsorption. This fact turns to
illustrate that it is ionic core scattering processes which give
rise to chaos in autoionization dynamics and are verified by
comparison of our results with the hydrogen atom situation readily.
In order to reveal the chaotic properties in detail, the sensitive
dependence of the ionization rate upon the scaled energy is
discussed for different scaled energies. This approach provides a
simple explanation for the chaotic character in autoionization decay
of Rydberg alkali-metal atoms. |
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Keywords: | chaos autoionization semiclassical theory core scattering |
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