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arXiv physics/0208088physics.atom-ph
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氖原子亚稳态3 P2寿命的精密测量

Precision measurement of the metastable 3P2 lifetime of neon

Martin Zinner, Peter Spoden, Tobias Kraemer, Gerhard Birkl, Wolfgang Ertmer

摘要:

通过测量磁光阱(MOT)中Ne-20原子系综的荧光衰减,确定了Ne的亚稳态3 P2的寿命为14.70(13)s(衰减率为0.06801(62)1/s)。由于背景气体压力p < 5 10^-11 mbar和相对于3D 3态的低激发(0.5%的激发概率),寿命外推中只需要包含很小的修正。结合对MOT中剩余损耗机制的仔细分析,实现了高精度的寿命确定。

英文摘要:

The lifetime of the metastable 3P2 state of neon has been determined to 14.70(13) s (decay rate 0.06801(62) 1/s) by measuring the decay in fluorescence of an ensemble of Ne-20 atoms trapped in a magneto-optical trap (MOT). Due to low background gas pressure p < 5 10^-11 mbar and low relative excitation to the 3D3 state (0.5% excitation probability) operation only small corrections have to be included in the lifetime extrapolation. Together with a careful analysis of residual loss mechanisms in the MOT a lifetime determination to high precision is achieved.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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