Compact high-flux source of cold sodium atoms

Year: 2013

Authors: Lamporesi G., Donadello S., Serafini S., Ferrari G.

Autors Affiliation: Dipartimento di Fisica, Università di Trento and INO-CNR BEC Center, I-38123 Povo, Italy

Abstract: We present a compact source of cold sodium atoms suitable for the production of quantum degenerate gases and versatile for a multi-species experiment. The magnetic field produced by permanent magnets allows to simultaneously realize a Zeeman slower and a two-dimensional magneto-optical trap (MOT) within an order of magnitude smaller length than standard sodium sources. We achieve an atomic flux exceeding 4 x 10(9) atoms/s loaded in a MOT, with a most probable longitudinal velocity of 20 m/s, and a brightness larger than 2.5 x 10(12) atoms/s/sr. This atomic source allows us to produce pure Bose-Einstein condensates with more than 10(7) atoms and a background pressure limited lifetime of 5 min. (C) 2013 AIP Publishing LLC.


Volume: 84 (6)      Pages from: 063102  to: 063102

More Information: The authors thank R. Graziola, M. Tomasi, and the Electronic&Engineering Service of the University of Trento for the valuable and effective support provided during the activation of our laboratory. We also acknowledge fruitful discussions with M. Prevedelli and F. Schreck, the support of the whole BEC Center in Trento and the collaborative exchange with the Quantum Degenerate Gases group at LENS in Florence. This work was financially supported by Provincia Autonoma di Trento.
DOI: 10.1063/1.4808375

Citations: 42
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