A conveyor-belt magneto-optical trap of CaF

2024/09/23 by Scarlett S. Yu, Jiaqi You, Yu, Scarlett S. +19 · 2 citations
Physics and Astronomy · #Advanced Frequency and Time Standards #Atomic Physics (physics.atom-ph) #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Quantum optics and atomic interactions

paper · pdf · doi:10.48550/arxiv.2409.15262

openalex publication_date 2024/09/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We report the experimental realization of a conveyor-belt magneto-optical trap for calcium monofluoride (CaF) molecules. The obtained highly-compressed cloud has a mean radius of 64(5) μm and a peak number density of 3.6(5) × 10¹⁰ cm^-3, a 600-fold increase over the conventional red-detuned MOTs of CaF, and the densest molecular MOT observed to date. Subsequent loading of these molecules into an optical dipole trap yields up to 2.6 × 10⁴ trapped molecules at a temperature of 14(2) μK with a peak phase-space density of ∼ 2.4 × 10^-6. This opens new possibilities for a range of applications utilizing high-density, optically trapped ultracold molecules.

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