AI Article Synopsis
- Researchers successfully created a continuously loaded magneto-optical trap (MOT) for strontium-88 (^88Sr), achieving a high phase-space density of 1.3(2)×10^{-3}, significantly surpassing previous MOT records.
- They utilized a technique involving multiple laser cooling stages before trapping atoms in the MOT, which operates on a specific 7.4-kHz linewidth of the Sr intercombination line.
- Additionally, they were able to produce a Bose-Einstein condensate within the MOT, indicating that this high phase-space density MOT could serve as a foundation for future advancements like continuous atom lasers and precise atom interferometers or clocks.
Article Abstract
We demonstrate a continuously loaded ^{88}Sr magneto-optical trap (MOT) with a steady-state phase-space density of 1.3(2)×10^{-3}. This is 2 orders of magnitude higher than reported in previous steady-state MOTs. Our approach is to flow atoms through a series of spatially separated laser cooling stages before capturing them in a MOT operated on the 7.4-kHz linewidth Sr intercombination line using a hybrid slower+MOT configuration. We also demonstrate producing a Bose-Einstein condensate at the MOT location, despite the presence of laser cooling light on resonance with the 30-MHz linewidth transition used to initially slow atoms in a separate chamber. Our steady-state high phase-space density MOT is an excellent starting point for a continuous atom laser and dead-time free atom interferometers or clocks.
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| http://dx.doi.org/10.1103/PhysRevLett.119.223202 | DOI Listing |
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