623 citations · 1.6k across the 8 of their papers we have counts for
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Symmetry-broken momentum distributions induced by matter-wave diffraction during time-of-flight expansion of ultracold atoms
Malte Weinberg, Ole Jürgensen, Christoph Ölschläger +3
We study several effects which lead to symmetry-broken momentum distributions of quantum gases released from optical lattices. In particular, we demonstrate that interaction within…
Breaking inversion symmetry in a state-dependent honeycomb lattice: Artificial graphene with tunable band gap
Malte Weinberg, Christina Staarmann, Christoph Ölschläger +2
Here, we present the application of a novel method for controlling the geometry of a state-dependent honeycomb lattice: The energy offset between the two sublattices of the honeyco…
Multiphoton interband excitations of quantum gases in driven optical lattices
M. Weinberg, C. Ölschläger, C. Sträter +4
We report on the observation of multiphoton interband absorption processes for quantum gases in shaken light crystals. Periodic inertial forcing, induced by a spatial motion of the…
Quantum phases in tunable state-dependent hexagonal optical lattices
Dirk-Sören Lühmann, Ole Jürgensen, Malte Weinberg +3
We study the ground-state properties of ultracold bosonic atoms in a state-dependent graphene-like honeycomb optical lattice, where the degeneracy between the two triangular sublat…
Engineering Ising-XY spin models in a triangular lattice via tunable artificial gauge fields
Julian Struck, Malte Weinberg, Christoph Ölschläger +8
Emulation of gauge fields for ultracold atoms provides access to a class of exotic states arising in strong magnetic fields. Here we report on the experimental realisation of tunab…
Non-Abelian gauge fields and topological insulators in shaken optical lattices
Philipp Hauke, Olivier Tieleman, Alessio Celi +8
Time-periodic driving like lattice shaking offers a low-demanding method to generate artificial gauge fields in optical lattices. We identify the relevant symmetries that have to b…