2.2k citations · 4.2k across the 9 of their papers we have counts for
9 papers
Exploring competing density order in the ionic Hubbard model with ultracold fermions
Michael Messer, Rémi Desbuquois, Thomas Uehlinger +4
We realize and study the ionic Hubbard model using an interacting two-component gas of fermionic atoms loaded into an optical lattice. The bipartite lattice has honeycomb geometry…
Experimental realisation of the topological Haldane model
Gregor Jotzu, Michael Messer, Rémi Desbuquois +4
The Haldane model on the honeycomb lattice is a paradigmatic example of a Hamiltonian featuring topologically distinct phases of matter. It describes a mechanism through which a qu…
Thermodynamics and magnetic properties of the anisotropic 3D Hubbard model
Jakub Imriška, Mauro Iazzi, Lei Wang +7
We study the 3D Hubbard model with anisotropic nearest neighbor tunneling amplitudes using the dynamical cluster approximation and compare the results with a quantum simulation exp…
Artificial graphene with tunable interactions
Thomas Uehlinger, Gregor Jotzu, Michael Messer +4
We create an artificial graphene system with tunable interactions and study the crossover from metallic to Mott insulating regimes, both in isolated and coupled two-dimensional hon…
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…
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…