Heidelberg 2015 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 15: Poster: Quantum Optics and Photonics I

Q 15.56: Poster

Montag, 23. März 2015, 17:00–19:00, C/Foyer

A state dependent lattice for many body physics with ytterbium — •Luis Riegger1,2, Christian Hofrichter1,2, Moritz Höfer1,2, Francesco Scazza1,2, Diogo Rio Fernandes1,2, Immanuel Bloch1,2, and Simon Fölling1,21Ludwig-Maximilians-Universität, München, Deutschland — 2Max-Planck-Institut für Quantenoptik, Garching, Deutschland

In contrast to the more common alkali atoms, ytterbium possesses a metastable excited state as well as a strong decoupling between the nuclear and the electronic spin degree of freedom.

We report on the realization of a state dependent lattice for the 1S0 ground and 3P0 meta-stable state of ytterbium. Since the state dependence arises from the different AC-polarizability of the two electronic configurations, the optical lattice remains nuclear spin independent. This degree of freedom is an important ingredient for the simulation of many-body systems such as Kondo physics.

Imposing such a "non-magic" lattice on a degenerate quantum gas of either bosonic or fermionic ytterbium isotopes, we are able to prepare specific lattice Hamiltonians, which we probe spectroscopically and dynamically.

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DPG-Physik > DPG-Verhandlungen > 2015 > Heidelberg