Berlin 2014 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 34: Poster: Ultra-cold atoms, ions and BEC (with Q)
A 34.24: Poster
Mittwoch, 19. März 2014, 16:30–18:30, Spree-Palais
Progress on the Fermi Quantum Microscope — •Timon Hilker1, Martin Boll1, Ahmed Omran1, Thomas Reimann1, Konrad Viebahn1, Alexander Keesling1, Immanuel Bloch1,2, and Christian Groß1 — 1Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Str.1, 85748 Garching — 2Ludwig-Maximilians-Universität München, Schellingstr. 4, 80799 München
Ultracold atoms in optical lattices have proven to be a powerful tool for investigating quantum many body systems. Recent experiments have demonstrated the power of single-site resolved detection in optical lattices for the study of strongly correlated bosonic many body systems.
In our experiment we plan to apply similar techniques to fermionic systems. Here, we present our progress towards a fermionic many body system trapped in a 3D optical lattice. Li-6 atoms are cooled to degeneracy using a UV-MOT and a fast optical evaporation. We plan to achieve the imaging of single atoms resolved on individual sites of a 2D plane of the lattice by superimposing an additional small-scale pinning lattice onto the larger-scale physics lattice. This freezes out the distribution of atoms during imaging with a high resolution imaging system, which allows to separate the detector from the physical system under study. Different lattice geometries can thus be studied with single atom sensitivity. In this way we plan to probe the quantum phases of the Fermi-Hubbard Hamiltonian by local measurements, and investigate the underlying phenomena associated with condensed matter systems, e.g. quantum magnetism.