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Originally published in Science Express on 5 December 2002
Science 10 January 2003:
Vol. 299. no. 5604, pp. 232 - 235
DOI: 10.1126/science.1079699
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Reports

Bose-Einstein Condensation of Cesium

Tino Weber, Jens Herbig, Michael Mark, Hanns-Christoph Nägerl, Rudolf Grimm

Bose-Einstein condensation of cesium atoms is achieved by evaporative cooling using optical trapping techniques. The ability to tune the interactions between the ultracold atoms by an external magnetic field is crucial to obtain the condensate and offers intriguing features for potential applications. We explore various regimes of condensate self-interaction (attractive, repulsive, and null interaction strength) and demonstrate properties of imploding, exploding, and non-interacting quantum matter.

Institut für Experimentalphysik, Universität Innsbruck, Technikerstrabeta e 25, 6020 Innsbruck, Austria.

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