Osnabrück 2002 – wissenschaftliches Programm
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Q: Quantenoptik
Q 301: Poster: Fallen, Kühlung, Teilchenoptik
Q 301.27: Poster
Mittwoch, 6. März 2002, 11:00–13:00, Schloss
Experimental realization of a Bose-Einstein condensate as a source for nonlinear atom optics — •Philipp Treutlein1, Bernd Eiermann1, Thomas Anker1, Karen Forberich1, Jürgen Mlynek2, and Markus Oberthaler1 — 1Universität Konstanz, Fachbereich Physik, Fach M696, 78457 Konstanz — 2Humboldt-Universität zu Berlin, Unter den Linden 6, 10099 Berlin
Nonlinearity is one of the most prominent features of atomic Bose-Einstein condensates, which makes them suitable sources for the experimental study of nonlinear atom-optical effects, such as solitons and vortices.
We report on the creation of a Bose-Einstein condensate in 87Rb in a magnetic TOP trap and present the details of our experiment. First tests to tailor the dispersion relation of the atomic matter wave are discussed. This No-dqdispersion managementNo-dq is realized by putting the condensate into a one-dimensional periodic light shift potential. It can be used to reach the regime of a condensate with negative effective mass.
In a condensate with repulsive interaction such as 87Rb, a negative effective mass is an important prerequisite for the creation of bright solitons. The latest results of our experiment towards the realization of bright atomic solitons are presented.