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Deutsches Elektronen-Synchrotron DESY Notkestraße 85 22607 Hamburg, Germany http://www.desy.de
Contact Mr Dr. Thomas Zoufal +49 40 89981666
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Deutsches Elektronen-Synchrotron DESY

Gruppendynamik bei Atomen

DESY-Forscher beobachten erstmals die kollektive Lamb-Verschiebung

(PresseBox) (Hamburg, )
Eine Gruppe gleicher Atome verhält sich bei Einstrahlung von Licht anders als ein Einzelatom.Gemeinsam leuchten die Atome in längerwelligem Licht als das ein einzelnes Atom tun würde. Dieser Effekt - kollektive Lamb-Verschiebung genannt - konnte jetzt erstmalig von einer Forschergruppe um Dr. Ralf Röhlsberger vom Helmholtz-Forschungszentrum DESY nachgewiesen werden. Die Wissenschaftler von DESY, der Europäischen Synchrotronstrahlungsquelle ESRF (Frankreich) und der Universität Leuven (Belgien) wiesen damit einen Effekt nach, der vor mehr als 35 Jahren theoretisch vorhergesagt wurde, sich aber stets dem Experiment entzog. Die Ergebnisse des Experiments, das an der ESRF in Grenoble durchgeführt wurde, werden in der aktuellen Ausgabe fts Ikkeyiqucov Aurpnom wdslvsrexesarp.

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