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Extracting Atoms on Demand with Lasers

Bernd Mohring·Marc Bienert·Florian Haug·Giovanna Morigi·Wolfgang P. Schleich·Mark G. Raizen
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Abstract

We propose a scheme that allows to coherently extract cold atoms from a reservoir in a deterministic way. The transfer is achieved by means of radiation pulses coupling two atomic states which are object to different trapping conditions. A particular realization is proposed, where one state has zero magnetic moment and is confined by a dipole trap, whereas the other state with non-vanishing magnetic moment is confined by a steep microtrap potential. We show that in this setup a predetermined number of atoms can be transferred from a reservoir, a Bose-Einstein condensate, into the collective quantum state of the steep trap with high efficiency in the parameter regime of present experiments.

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Bernd Mohring, Marc Bienert, Florian Haug, Giovanna Morigi, Wolfgang P. Schleich, Mark G. Raizen. 2004-12-23. Extracting Atoms on Demand with Lasers. https://doi.org/10.1103/physreva.71.053601

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