Exploring strongly correlated quantum many-body systems with ultracold atoms in optical lattices


  • Immanuel Bloch,

    Corresponding author
    1. Max-Planck Institut für Quantentopik, Hans-Kopfermann Str. 1, 85748 Garching b. München and Fakultät für Physik, Ludwig-Maximilians Universität, Schellingstrasse 4, 80799 München, Germany
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  • Achim Rosch

    1. Institut für Theoretische Physik, Universität zu Köln, Zülpicherstr. 77, 50937 Köln, Germany
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Ultracold quantum gases in optical lattices can be used as novel model system for the exploration of strongly correlated many-body phases of bosonic or fermionic particles. Here we report on the realization of metallic, Mott-insulating and band insulating phases in ultracold spin mixtures of fermionic 40K atoms. The experimental results are compared to ab initio dynamical mean field theory (DMFT) calculations.