Erlangen 2018 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 51: Poster: Quantum Optics and Photonics IV
Q 51.19: Poster
Mittwoch, 7. März 2018, 16:15–18:15, Redoutensaal
Towards Quantum Simulation of the Kondo Lattice Model — •Benjamin Abeln1, Marcel Diem1, Koen Sponselee1, Maximilian Hagenah1, Bodhaditya Santra1, Klaus Sengstock1,2, and Christoph Becker1,2 — 1Zentrum für Optische Quantentechnologien, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany — 2Institut für Laserphysik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
Over the last decade ultracold fermionic alkaline earth quantum gasses attracted a lot of attention due to their unique properties such as an ultra-narrow optical clock transition, a long-lived meta-stable state, SU(N) symmetric interactions, and the existence of an interorbital Feshbach resonance. In particular, fermionic ytterbium (Yb) quantum gases loaded into a state-dependent optical lattice allow for quantum simulation of lattice systems with orbital degrees of freedom, like the Kugel-Khomskii model or the Kondo lattice model (KLM). In the state-dependent lattice, the ground state atoms mimic the mobile spins in the KLM, whereas the excited state atoms represent the localized spin impurities.
We present progress towards the quantum simulation of the KLM with fermionic Yb atoms, including the loading of ground state atoms into a state-dependent lattice and the necessary refinements to the optical clock setup for flexible initial state preparation.
This work is supported by the DFG within the SFB 925.