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Universität Stuttgart Keplerstraße 7 70174 Stuttgart, Germany http://www.uni-stuttgart.de
Contact Ms Andrea Mayer-Grenu +49 711 68582176
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Universität Stuttgart

Eiskalte Atomwolken

Stuttgarter Physiker realisieren neues, magnetisches Kühlverfahren für Gase

(PresseBox) (Stuttgart, )
Kühlt man Materie nahe an den absoluten Nullpunkt, so tritt deren Quantennatur zu Tage. Manche Atome, so genannte Bosonen, gehen dann in einen neuen Aggregatzustand über, sie formen ein Bose-Einstein-Kondensat. Experimente mit solchen Bose-Einstein-Kondensaten gewähren einen Einblick in die Quantenwelt und sind daher ideale Forschungsobjekte für die Grundlagenforschung. Um zu solchen ultrakalten Temperaturen zu gelangen, waren Physiker bisher auf die verlustreiche Verdampfungskühlung angewiesen: Wie bei erkaltendem Kaffee verlassen dabei die heißesten Atome die Wolke, wodurch der Rest zwar kälter, aber auch weniger wird.

Am 5. Physikalischen Institut der Universität Stuttgart wurde nun ein bereits in den 50er-Jahren vorgeschlagenes Kühlschema
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The publisher indicated in each case (see company info by clicking on image/title or company info in the right-hand column) is solely responsible for the stories above, the event or job offer shown and for the image and audio material displayed. As a rule, the publisher is also the author of the texts and the attached image, audio and information material. The use of information published here is generally free of charge for personal information and editorial processing. Please clarify any copyright issues with the stated publisher before further use. In case of publication, please send a specimen copy to service@pressebox.de.