Production of large Bose-Einstein condensates in a magnetic-shield-compatible hybrid trap

Year: 2018

Authors: Colzi G., Fava E., Barbiero M., Mordini C., Lamporesi G., Ferrari G.

Autors Affiliation: INO-CNR BEC Center and Dipartimento di Fisica, Università di Trento, 38123 Trento, Italy; Trento Institute for Fundamental Physics and Applications, INFN, 38123 Trento, Italy; Politecnico di Torino, Corso Duca degli Abruzzi, 24 10129 Torino, Italy; Istituto Nazionale di Ricerca Metrologica, Strada delle Cacce 91, Torino 10135, Italy

Abstract: We describe the production of large 23Na Bose-Einstein condensates in a hybrid trap characterized by a weak magnetic field quadrupole and a tightly focused infrared beam. The use of small magnetic field gradients makes the trap compatible with the state-of-the-art magnetic shields. By taking advantage of the deep cooling and high efficiency of gray molasses to improve the initial trap loading conditions, we produce condensates composed of as many as 7 million atoms in less than 30 s.

Journal/Review: PHYSICAL REVIEW A

Volume: 97 (5)      Pages from: 053625-1  to: 053625-7

KeyWords: atom trap; BEC;
DOI: 10.1103/PhysRevA.97.053625

Citations: 9
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