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High-resolution imaging of ultracold fermions in microscopically tailored optical potentials
Bruno Zimmermann, Torben Mueller, Jakob Meineke +2
We report on the local probing and preparation of an ultracold Fermi gas on the length scale of one micrometer, i.e. of the order of the Fermi wavelength. The essential tool of our…
Local observation of antibunching in a trapped Fermi gas
Torben Mueller, Bruno Zimmermann, Jakob Meineke +3
Local density fluctuations and density profiles of a Fermi gas are measured in-situ and analyzed. In the quantum degenerate regime, the weakly interacting Li gas shows a suppre…
Lifetime of double occupancies in the Fermi-Hubbard model
Rajdeep Sensarma, David Pekker, Ehud Altman +7
We investigate the decay of artificially created double occupancies in a repulsive Fermi-Hubbard system in the strongly interacting limit using diagrammatic many-body theory and ex…