Atomic pseudospin resonance

A new type of resonance is discovered in Rydberg atoms placed in a constant magnetic field -->B and a transient electric field that rotates at the constant frequency -->omega in a plane perpendicular to -->B. The dynamics is explained in terms of two pseudoparticles with spin 1 / 2 in two g...

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Bibliographic Details
Published in:Physical review letters 2001-11, Vol.87 (22), p.223001-223001, Article 223001
Main Authors: Fregenal, D, Ehrenreich, T, Henningsen, B, Horsdal-Pedersen, E, Nyvang, L, Ostrovsky, V N
Format: Article
Language:English
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Summary:A new type of resonance is discovered in Rydberg atoms placed in a constant magnetic field -->B and a transient electric field that rotates at the constant frequency -->omega in a plane perpendicular to -->B. The dynamics is explained in terms of two pseudoparticles with spin 1 / 2 in two generalized magnetic fields. The resonance frequency is predicted and found at -->omega = (e/2m)-->B, where -e/m is the electron's charge-to-(reduced)mass ratio. We discuss the applicability of the resonance to accurate magnetic field measurements and the prospects for determining e/m with improved precision.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.87.223001