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An optical conveyor belt for single neutral atoms

Dominik Schrader·Stefan Kuhr·Wolfgang Alt·Martin Mueller·Victor Gomer·Dieter Meschede
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Abstract

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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Dominik Schrader, Stefan Kuhr, Wolfgang Alt, Martin Mueller, Victor Gomer, Dieter Meschede. 2001-07-05. An optical conveyor belt for single neutral atoms. https://doi.org/10.1007/s003400100722

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