Spin-singlet Bose-Einstein condensation of two-electron atoms

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公開日
2003-07-25
資源種別
journal article
権利情報
  • Copyright 2003 American Physical Society
DOI
  • 10.1103/physrevlett.91.040404
公開者
AMERICAN PHYSICAL SOC

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説明

We report the observation of a Bose-Einstein condensation of ytterbium atoms by evaporative cooling in a novel crossed optical trap. Unlike the previously observed condensates, a ytterbium condensate is a two-electron system in a singlet state and has distinct features such as the extremely narrow intercombination transitions which are ideal for future optical frequency standard and the insensitivity to external magnetic field which is important for precision coherent atom optics, and the existence of the novel metastable triplet states generated by optical excitation from the singlet state.

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