Abstract We present a new method for computing the recurrence spectra of n ≈ 40, m = 0 lithium Rydberg atoms in strong parallel external electric and magnetic fields. This method is based on an extended closed-orbit theory allowing the computation of the scattering of the electron by the ionic core. We pay particular attention to the scaling properties, which are extremely important for understanding the correspondence between classical and quantum mechanics. The spectra with a constant scaled electric field $\tilde{F}$ = 0.01 and a scaled energy $\varepsilon$ = -0.03 are recorded and compared with those of hydrogen obtained by the standard closed-orbit theory. The result shows that the additional strong resonance structures can be interpreted in terms of the core-scattered classical closed orbits.
Received: 29 November 2001
Revised: 18 March 2002
Accepted manuscript online:
(Multiphoton ionization and excitation to highly excited states)
Fund: Project supported by the Natural Science Foundation of Shandong Province of China (Grant No Y98A06009)
Cite this article:
Song Xiao-Hong (宋晓红), Zhang Qiu-Jü (张秋菊), Xue Yan-Li (薛艳丽), Zhao Ke (赵珂), Li Yu (李玉), Lin Sheng-Lu (林圣路) Recurrence spectra of non-hydrogen Rydberg atoms in parallel electric and magnetic fields 2002 Chinese Physics 11 656
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