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An optical conveyor belt for single neutral atoms

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 نشر من قبل Dominik Schrader
 تاريخ النشر 2001
  مجال البحث فيزياء
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Using optical dipole forces we have realized controlled transport of a single or any desired small number of neutral atoms over a distance of a centimeter with sub-micrometer precision. A standing wave dipole trap is loaded with a prescribed number of cesium atoms from a magneto-optical trap. Mutual detuning of the counter-propagating laser beams moves the interference pattern, allowing us to accelerate and stop the atoms at preselected points along the standing wave. The transportation efficiency is close to 100%. This optical single-atom conveyor belt represents a versatile tool for future experiments requiring deterministic delivery of a prescribed number of atoms on demand.



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