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cond-mat.quant-gas2012★ 403 cited
Short-range quantum magnetism of ultracold fermions in an optical lattice
Daniel Greif, Thomas Uehlinger, Gregor Jotzu +2
The exchange coupling between quantum mechanical spins lies at the origin of quantum magnetism. We report on the observation of nearest-neighbor magnetic spin correlations emerging…
cond-mat.quant-gas2012★ 43 cited
Double transfer through Dirac points in a tunable honeycomb optical lattice
Thomas Uehlinger, Daniel Greif, Gregor Jotzu +4
We report on Bloch-Zener oscillations of an ultracold Fermi gas in a tunable honeycomb lattice. The quasi-momentum distribution of the atoms is measured after sequentially passing…