Volume 36, Number 5, November II 1996
|Page(s)||349 - 354|
|Section||Atomic, molecular and optical physics|
|Published online||01 September 2002|
Steep magnetic trap for ultra cold atoms
Sektion Physik, Ludwig-Maximilians-Universität,
Schellingstraße 4, 80799 München, Germany
Max-Planck-Institut für Quantenoptik,
Postfach 1513, 85740 Garching, Germany
Accepted: 24 September 1996
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 lithium atoms () from a magneto-optical trap and the energy distribution determined by stepwise reduction of the trapping potential. Finally, magnetic trapping of fermionic has been demonstrated.
PACS: 32.80.Pj – Optical cooling of atoms; trapping / 42.50.-p – Quantum optics
© EDP Sciences, 1996
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