Spectral properties of non-hydrogenic atoms in weak external fields

Details Spectral properties of non-hydrogenic atoms in weak external fields Spectral properties of non-hydrogenic atoms in weak external fields

1998-09-02

arxiv.org/abs/chao-dyn/9809004v1

Nonlinear Sciences

Chaotic Dynamics

5 pages, 4 figures. To appear in Physical Review Letter

Scientific paper

10.1103/PhysRevLett.81.2442

We study how the ionic core in a non-hydrogenic atom modifies the dynamics of a Rydberg electron in the presence of a weak static external field. We show that such a system is neither regular nor chaotic: its energy levels display unusual statistical properties, intermediate between the standard Poisson and Random Matrix ones. The ionic core acts as a scatterer whose size is comparable to the de Broglie wavelength of the electron, inducing specific quantum effects.

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