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Magnetic trapping of NH molecules with 20 s lifetimes

Published Web Location

https://doi.org/10.1088/1367-2630/12/6/065028
Abstract

Buffer gas cooling is used to trap NH molecules with 1/e lifetimes exceeding 20 s. Helium vapor generated by laser desorption of a helium film is employed to thermalize 105 molecules at a temperature of 500mK in a 3.9 T magnetic trap. Long molecule trapping times are attained through rapid pumpout of residual buffer gas. Molecules experience a helium background gas density below 1 x 1012cm-3. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.

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