Magnetic-field induced enhancement in the fluorescence yield spectrum of doubly excited states in helium

An influence of static magnetic fields on the fluorescence yield spectrum of He in the vicinity of the N = 2 thresholds has been observed. The experimental results are in excellent agreement with predictions based on multichannel quantum defect theory, and it is demonstrated that the Rydberg electro...

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Veröffentlicht in:	Physical review letters 2006-12, Vol.97 (25), p.253002-253002, Article 253002
Hauptverfasser:	Ström, Magnus, Såthe, Conny, Agåker, Marcus, Söderström, Johan, Rubensson, Jan-Erik, Stranges, Stefano, Richter, Robert, Alagia, Michele, Gorczyca, T W, Robicheaux, F
Format:	Artikel
Sprache:	eng
Schlagworte:	CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ELECTRONS FLUORESCENCE Fysik HELIUM MAGNETIC FIELDS NATURAL SCIENCES NATURVETENSKAP Physics RYDBERG STATES
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Zusammenfassung:	An influence of static magnetic fields on the fluorescence yield spectrum of He in the vicinity of the N = 2 thresholds has been observed. The experimental results are in excellent agreement with predictions based on multichannel quantum defect theory, and it is demonstrated that the Rydberg electron l mixing due to the diamagnetic interaction is essential for the description of the observed fluorescence yield intensity enhancement.
ISSN:	0031-9007 1079-7114 1079-7114
DOI:	10.1103/PhysRevLett.97.253002