Abstract
We describe the preparation of ultracold atomic clouds in a dilution refrigerator. The closed-cycle 3He/4He cryostat was custom made to provide optical access for laser cooling, optical manipulation and detection of atoms. We show that the cryostat meets the requirements for cold atom experiments, specifically in terms of operating a magneto-optical trap, magnetic traps and magnetic transport under ultrahigh vacuum conditions. The presented system is a step toward the creation of a quantum hybrid system combining ultracold atoms and solid-state quantum devices.
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Acknowledgments
This work was supported by the European Research Council (ERC Advanced Grant SOCATHES) and the Deutsche Forschungsgemeinschaft (SFB TRR21). M.K. and M.R. acknowledge support from the Carl Zeiss Stiftung. P.V. und H.H. acknowledge support from the Evangelisches Studienwerk e.V. Villigst.
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Jessen, F., Knufinke, M., Bell, S.C. et al. Trapping of ultracold atoms in a 3He/4He dilution refrigerator. Appl. Phys. B 116, 665–671 (2014). https://doi.org/10.1007/s00340-013-5750-5
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DOI: https://doi.org/10.1007/s00340-013-5750-5