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Storage ring for neutral atoms

Sauer, J.A.; Barrett, M.D.; Chapman, M.S.

Physical Review Letters 87(27 Part 1): 270401

2001


ISSN/ISBN: 0031-9007
PMID: 11800860
DOI: 10.1103/physrevlett.87.270401
Accession: 047443723

We have demonstrated a storage ring for ultracold neutral atoms. Atoms with mean velocities of 1 m/s corresponding to kinetic energies of approximately 100 neV are confined to a 2 cm diameter ring by magnetic forces produced by two current-carrying wires. Up to 10(6) atoms are loaded at a time in the ring, and seven revolutions are clearly observed. Additionally, we have demonstrated multiple loading of the ring and deterministic manipulation of the longitudinal velocity distribution of the atoms using applied laser pulses. Applications of this ring include large area atom interferometers and monochromatic atomic beam generation.

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