%0 Journal Article %T Semiclassical calculation of the recurrence spectra of He Rydberg atom in perpendicular electric and magnetic fields %A Wang De-Hua %A Lin Sheng-Lu %A
王德华 %A 林圣路 %J 中国物理 B %D 2004 %I %X Closed orbit theory is a semiclassical technique for explaining the spectra of Rydberg atoms in external fields. By developing the closed orbit theory from two degrees of freedom to three non-separable degrees of freedom, we calculated the recurrence spectra of He Rydberg atom in perpendicular electric and magnetic fields. The closed orbits in the corresponding classical system have also been obtained. Fourier transformed spectra of He atoms have allowed direct comparison between the resonance peaks and the scaled action values of closed orbits, whereas the nonhydrogenic resonance can be explained in terms of the new orbits created by the core scattering. The semiclassical result is in good agreement with the quantum spectra, which suggests that our method is correct. %K closed orbit theory %K recurrence spectra %K core scattering
半经典计算 %K 电磁场 %K 傅立叶变换 %K 核散射 %K 原子光谱 %K 原子物理学 %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=FBBE4155CE1FE79EF7A1C18AC874275E&yid=D0E58B75BFD8E51C&vid=FC0714F8D2EB605D&iid=E158A972A605785F&sid=1A033C02510EFBE6&eid=3FC4D669D19FF0C6&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=16