Mainz 2017 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 40: Ultracold Atoms II (with Q)

A 40.1: Vortrag

Freitag, 10. März 2017, 14:30–14:45, P 104

Realization of a dual-species MOT for dysprosium and potassium — •C. Ravensbergen^1,2, S. Tzanova^1,2, M. Kreyer², E. Soave², A. Werlberger², V. Corre^1,2, E. Kirilov², and R. Grimm^1,2 — ¹IQOQI, Austrian Academy of Sciences, Innsbruck, Austria — ²Insitute for Experimental Physics, University of Innsbruck, Innsbruck, Austria

We report on the first realization of a dual-species magneto-optical trap that combines strongly magnetic lanthanide atoms (Dy) with an alkali species (K). Advanced cooling techniques in the form of narrow-line laser cooling and grey-molasses cooling give us favorable starting conditions to reach quantum degeneracy. With fermionic and bosonic isotopes of both species, our system offers a great wealth of isotopic mixtures. We are particularly interested in new Fermi-Fermi mixtures. These are expected to exhibit exotic quantum phases and novel pairing mechanisms, including for example mass-imbalanced pairing or a fermionic superfluid with a Fermi surface modified by the dipolar interactions.