Definitive number of atoms on demand: Controlling the number of atoms in a few-atom magneto-optical trap

Seokchan Yoon, Youngwoon Choi, Sangbum Park, Jaisoon Kim, Jai Hyung Lee, Kyungwon An

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A few Rb85 atoms were trapped in a micron-size magneto-optical trap with a high quadrupole magnetic-field gradient and the number of atoms was precisely controlled by suppressing stochastic loading and loss events via real-time feedback on the magnetic-field gradient. The measured occupation probability of a single atom was as high as 99%. Atoms up to five were also trapped with high occupation probabilities. The present technique could be used to make a deterministic atom source.

Original languageEnglish
Article number211104
JournalApplied Physics Letters
Issue number21
Publication statusPublished - 2006 May 21
Externally publishedYes


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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