| Issue |
Europhys. Lett.
Volume 36, Number 5, November II 1996
|
|
|---|---|---|
| Page(s) | 349 - 354 | |
| Section | Atomic, molecular and optical physics | |
| DOI | https://doi.org/10.1209/epl/i1996-00234-2 | |
| 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
Received:
13
June
1996
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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