Berlin 2014 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 36: Quantum gases: Effects of interactions
Q 36.3: Vortrag
Donnerstag, 20. März 2014, 11:15–11:30, UDL HS2002
Interaction properties of the the 3P0 meta stable state of 173Yb — •Christian Hofrichter1,2, Francesco Scazza1,2, Moritz Höfer1,2, Pieter C. de Groot1,2, Christian Schweizer1,2, Emily Davis1,2, Immanuel Bloch1,2, and Simon Fölling1,2 — 1MPI für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany — 2Ludwig-Maximilians-Universität München, Schellingstraße 4, 80799 München, Germany
Atoms with Alkaline-earth-like electronic structure such as Ytterbium have more complex electronic level structures compared to the more common alkali atoms. Specifically, they include a metastable excited state with an associated ’clock transition’ as well as a strong decoupling between the nuclear and the electronic spin in the ground state.
Metastable states in such atoms are being used for the implementation of optical atomic clocks, and have been proposed as additional internal degrees of freedom for the study of complex many-body systems such as Kondo lattice physics. The phase diagram of such many-body systems is strongly characterized by the collisional properties of the involved atomic states.
Here we report on the investigation of the 3P0 - 1S0 (metastable to ground state) and 3P0 - 3P0 - interactions of fermionic 173Yb. We measure the elastic and inelastic scattering properties in degenerate ensembles in optical lattices, with control over both the electronic and nuclear spin degree of freedom.