Magnetic trapping of metastable calcium atoms

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Erscheinungsjahr:
2003
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  • Metastable calcium atoms, produced in a magneto-optic trap (MOT) operating within the singlet system, are continuously loaded into a magnetic trap formed by the magnetic quadrupole field of the MOT. At MOT temperatures of 3 mK and 240 ms loading time, we observe [Formula Presented] magnetically trapped [Formula Presented] atoms at densities of [Formula Presented] and temperatures of 0.61 mK. In a modified scheme, we first load a MOT for metastable atoms at a temperature of 0.18 mK and subsequently release these atoms into the magnetic trap. In this case, 240 ms of loading yields [Formula Presented] trapped [Formula Presented] atoms at a peak density of [Formula Presented] and a temperature of 0.13 mK. The temperature decrease observed in the magnetic trap for both loading schemes can be explained only in part by trap size effects. © 2003 The American Physical Society.
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  • info:eu-repo/semantics/closedAccess
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Forschungsinformationssystem der UHH
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oai:www.edit.fis.uni-hamburg.de:publications/b067a809-3692-47e2-a42c-7c82a2a84d7b