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Abstract: We experimentally demonstrate a detection scheme suitable for state analysisof single optically trapped atoms in less than 1 {\mu}s with an overalldetection efficiency {\eta} exceeding 98%. The method is based onhyperfine-state-selective photoionization and subsequent registration of thecorrelated photoion-electron pairs by coincidence counting via two opposingchannel electron multipliers. The scheme enables the calibration of absolutedetection efficiencies and might be a key ingredient for future quantuminformation applications or precision spectroscopy of ultracold atoms.



Autor: Florian Henkel, Michael Krug, Julian Hofmann, Wenjamin Rosenfeld, Markus Weber, Harald Weinfurter

Fuente: https://arxiv.org/







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