Steep magnetic trap for ultra cold atoms
- 10 November 1996
- journal article
- Published by IOP Publishing in Europhysics Letters
- Vol. 36 (5) , 349-354
- https://doi.org/10.1209/epl/i1996-00234-2
Abstract
A combination of current coils and ferromagnetic pole shoes is used to construct a magnetic quadrupole trap for ultra cold neutral atoms. Field gradients of up to 3000 G/cm have been achieved continuously with an electric power consumption of only 10 watts. A maximum field gradient of 1 T/cm is calculated for a current that can be applied for several seconds. The trap has been loaded with 8 × 106 lithium atoms (7Li) from a magneto-optical trap and the energy distribution determined by stepwise reduction of the trapping potential. Finally, magnetic trapping of fermionic 6Li has been demonstrated.Keywords
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