arxiv: cond-mat/0607170 · v1 · pith:65R5DVSOnew · submitted 2006-07-06 · ❄️ cond-mat.other

Atom counting in ultra-cold gases using photoionisation and ion detection

T. Campey , C. J. Vale , M. J. Davis , S. Kraft , C. Zimmermann , J. Fort\'agh , N. R. Heckenberg , H. Rubinsztein-Dunlop This is my paper

classification ❄️ cond-mat.other

keywords detectionschemeatomatomscountingphotoionisationultra-coldaccuracies

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We analyse photoionisation and ion detection as a means of accurately counting ultra-cold atoms. We show that it is possible to count clouds containing many thousands of atoms with accuracies better than $N^{-1/2}$ with current technology. This allows the direct probing of sub-Poissonian number statistics of atomic samples. The scheme can also be used for efficient single atom detection with high spatio-temporal resolution. All aspects of a realistic detection scheme are considered, and we discuss experimental situations in which such a scheme could be implemented.

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Atom counting in ultra-cold gases using photoionisation and ion detection

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