QUASI-LANDAU STRUCTURE OF DIAMAGNETIC HELIUM RYDBERG ATOMS

T. Vanderveldt, W. Vassen, W. Hogervorst

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

Diamagnetism in helium Rydberg atoms is studied near the ionisation threshold using constant scaled-energy laser spectroscopy. Quasi-Landau resonances in the Fouriertransform of the energy spectrum are explained using the classical periodic-orbit theory. Longlaser scans combined with a high-frequency resolution allow for a detailed comparison betweenexperiment and theory. Resonances with a scaled action Stup to 20 are identified andreproduced with an accuracy of 0.015. It is demonstrated that interference effects betweenresonances should be taken into account. © 1993 IOP Publishing Ltd.
Original languageEnglish
Pages (from-to)903-908
Number of pages6
JournalEurophysics Letters
Volume21
Issue number9
DOIs
Publication statusPublished - 1993

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