87 citations · 1.3k across the 76 of their papers we have counts for
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Chains with loops - synthetic magnetic fluxes and topological order in one-dimensional spin systems
Tobias Grass, Christine Muschik, Alessio Celi +2
Engineering topological quantum order has become a major field of physics. Many advances have been made by synthesizing gauge fields in cold atomic systems. Here, we carry over the…
Cold bosons in optical lattices: a tutorial for Exact Diagonalization
David Raventós, Tobias Graß, Maciej Lewenstein +1
Exact diagonalization techniques are a powerful method for studying many-body problems. Here, we apply this method to systems of few bosons in an optical lattice, and use it to dem…
Spiral spin textures of bosonic Mott insulator with SU(3) spin-orbit coupling
Tobias Graß, Ravindra W. Chhajlany, Christine A. Muschik +1
We study the Mott phase of three-component bosons, with one particle per site, in an optical lattice by mapping it onto an SU(3) spin model. In the simplest case of full SU(3) symm…
Quantum magnetism of ultracold atoms with a dynamical pseudospin degree of freedom
Tobias Graß, Alessio Celi, Maciej Lewenstein
We consider bosons in a Hubbard lattice with an SU() pseudospin degree of freedom which is made dynamical via a coherent transfer term. It is shown that, in the basis which…
Trapped-ion quantum simulation of tunable-range Heisenberg chains
Tobias Graß, Maciej Lewenstein
Quantum-optical techniques allow for generating controllable spin-spin interactions between ions, making trapped ions an ideal quantum simulator of Heisenberg chains. A single para…