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SUMMARY:Progress of the Munich Fermi Gas Microscope
DESCRIPTION:Recent experiments with ultracold quantum gases have demonstrated the power of single-site resolved detection in optical lattices for the study of (strongly correlated) bosonic many-body systems.
Here, I present the progress of our new experiment, in which we plan to implement a fermionic quantum simulator with such single-site resolving capabilities. Once finished we aim on probing the quantum phases of the Fermi-Hubbard Hamiltonian through local measurements, thereby gaining access to the underlying many-body phenomena, e.g. quantum magnetism.
To that end, a dilute cloud of Li-6 atoms is rapidly cooled down to degeneracy using narrow-line laser cooling and fast optical evaporation. We plan to load the cold atoms into a 3D optical superlattice which will serve as the main tool to implement the Hubbard Hamiltonian. Imaging of single atoms, located at individual sites of a 2D plane can then be realized by superimposing an additional small-scale pinning lattice with a much larger trap depth. The latter fixes the spatial distribution of atoms while a high resolution object lens captures their fluorescence emission. The use of the ancillary pinning lattice facilitates the separation of the detection stage from the physical system under study. Thus, different superlattice geometries can be implemented without affecting the resolving power of the quantum simulator.
LOCATION:Erwin Schrödinger Saal
DTSTART:20140327T090000
DTEND:20140327T100000
TZID: Europe/Vienna
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