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Science. 2001 Jul 13;293(5528):278-80. Epub 2001 Jun 14.

Deterministic delivery of a single atom.

Author information

  • 1Institut für Angewandte Physik, Universität Bonn, Wegelerstrasse 8, D-53115 Bonn, Germany. kuhr@iap.uni-bonn.de

Abstract

We report the realization of a deterministic source of single atoms. A standing-wave dipole trap is loaded with one or any desired number of cold cesium atoms from a magneto-optical trap. By controlling the motion of the standing wave, we adiabatically transport the atom with submicrometer precision over macroscopic distances on the order of a centimeter. The displaced atom is observed directly in the dipole trap by fluorescence detection. The trapping field can also be accelerated to eject a single atom into free flight with well-defined velocities.

PMID:
11408622
[PubMed]
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