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Extreme loss suppression and widely tunable interactions in ultracold molecules

May 13, 2025

Check out our new preprint - we demonstrate extreme suppression of inelastic losses in an ultracold molecular gas, reaching lifetimes > 6 seconds. While two- and three-body losses remain suppressed below the detection limit (!) we show that dipolar interactions can be widely and flexibly tuned with double microwave dressing - akin to what Feshbach resonances do for ultracold atoms. A huge thank you to the entire NaCs team for the tremendous work and all the amazing insights that led to this critical advance! Link: arXiv:2505.08773 (2025)

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Columbia University

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