Geometric phases causing lifetime modifications of metastable states of hydrogen

• Verfasst von: Trappe, Martin-Isbjörn [VerfasserIn]
• Verfasst von: Augenstein, Peter [VerfasserIn]
• Verfasst von: DeKieviet, Maarten [VerfasserIn]
• Verfasst von: Gasenzer, Thomas [VerfasserIn]
• Verfasst von: Nachtmann, Otto [VerfasserIn]
• Titel: Geometric phases causing lifetime modifications of metastable states of hydrogen
• Verf.angabe: Martin-Isbjörn Trappe, Peter Augenstein, Maarten DeKieviet, Thomas Gasenzer, Otto Nachtmann
• E-Jahr: 2016
• Jahr: 7 April 2016
• Umfang: 13 S.
• Illustrationen: Diagramme
• Fussnoten: Gesehen am 27.05.2020
• Titel Quelle: Enthalten in: The European physical journal / D
• Ort Quelle: Berlin : Springer, 1998
• Jahr Quelle: 2016
• Band/Heft Quelle: 70(2016,4) Artikel-Nummer 76, 13 Seiten
• ISSN Quelle: 1434-6079
• DOI: doi:10.1140/epjd/e2016-70036-6
• Datenträger: Online-Ressource
• Sprache: eng
• Bibliogr. Hinweis: Erscheint auch als : Online-AusgabeTrappe, Martin-Isbjörn: Geometric phases causing lifetime modifications of metastable states of hydrogen. - 2016
• K10plus-PPN: 1698928939

Abstract

Externally applied electromagnetic fields in general have an influence on the width ofatomic spectral lines. The decay rates of atomic states can also be affected by thegeometry of an applied field configuration giving rise to an imaginary geometric phase. Aspecific chiral electromagnetic field configuration is presented which geometricallymodifies the lifetimes of metastable states of hydrogen. We propose to extract therelevant observables in a realistic longitudinal atomic beam spin-echo apparatus whichallows the initial and final fluxes of the metastable atoms to be compared with each otherinterferometrically. A geometry-induced change in lifetimes at the 5%-level is found, an effect large enough tobe observed in an available experiment.