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Simple Magneto-Optical and Magnetic Traps for Dysprosium
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Simple Magneto-Optical and Magnetic Traps for Dysprosium

Liam Domett-Potts, Lucile Sanchez, Charlotte Hayton, Oscar Stone, Nuttida Kaewart, Piyawat Chatchaichompu, Narupon Chattrapiban, Nithiwadee Thaicharoen and Mikkel F Andersen
ArXiv.org
Cornell University
10/02/2026
Handle:
https://hdl.handle.net/10523/49977

Abstract

Physics - Atomic Physics
Dysprosium (Dy) is the most magnetic element on the periodic table, making it excellent for studying dipolar atom-atom interactions. We report on a simple Dy MOT that captures atoms directly from the thermal beam using a single diode-laser system to generate the light. Additionally, the atoms are magnetically confined by the quadrupole magnetic field that also facilitates the MOT. The MOT loading time is τb = 26 ms. Atoms can decay to a dark state that is magnetically trapped. The time constant for loading into this magnetic trap is τd = 410 ms. The total magnetically trapped population is 1.14×105 atoms, with 85% residing in the dark states. The magnetically trapped atoms have a temperature of 28µK, significantly below the Doppler limit. This population fulfills the requirements for a range of future experiments.
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2602.09403v15.90 MBDownloadView
Preprint (Author's original)v1CC BY-NC-ND V4.0 Open Access
url
https://doi.org/10.48550/arXiv.2602.09403View
Preprint (Author's original)CC BY-NC-ND V4.0 Open

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