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Abstract: Ultracold dysprosium gases, with a magnetic moment ten times that of alkaliatoms and equal only to terbium as the most magnetic atom, are expected toexhibit a multitude of fascinating collisional dynamics and quantum dipolarphases, including quantum liquid crystal physics. We report the first lasercooling and trapping of half a billion Dy atoms using a repumper-freemagneto-optical trap MOT and continuously loaded magnetic confinement, and wecharacterize the trap recycling dynamics for bosonic and fermionic isotopes.The first inelastic collision measurements in the few partial wave, 100 uK to 1mK, regime are made in a system possessing a submerged open electronic f-shell.In addition, we observe unusual stripes of intra-MOT <10 uK sub-Doppler cooledatoms.



Autor: Mingwu Lu, Seo Ho Youn, Benjamin L. Lev

Fuente: https://arxiv.org/







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