A magnetic guide for cold atoms

Details A magnetic guide for cold atoms A magnetic guide for cold atoms

1998-07-22

arxiv.org/abs/physics/9807037v1

Physics

Atomic Physics

7 pages plus 4 figures. To appear in Acta Physica Slovaca

Scientific paper

We propose a novel method for guiding cold, neutral atoms using static magnetic fields. A theoretical study of the magnetic field produced by a tube consisting of two identical, interwound solenoids carrying equal but opposite currents is presented. This field is almost zero throughout the centre of the tube, but it increases with exponential rapidity as one approaches the walls formed by the current carrying wires. Hence, cold atoms passing through the tube may be reflected by magnetic mirror effects near the walls. Applying this technique to a free-falling cloud of magneto-optically cooled caesium atoms we hope to construct atomic guides to facilitate the manipulation of cold atomic beams.

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