33 citations · 165 across the 12 of their papers we have counts for
5 papers · 1 filter
Interaction-driven topological phase transitions in fermionic SU() systems
Mohsen Hafez-Torbati, Jun-Hui Zheng, Bernhard Irsigler +1
We consider SU() fermions on the triangular lattice in the presence of a gauge potential which stabilizes a quantum Hall insulator (QHI) at the density of one particle per latti…
Z2 characterization for three-dimensional multiband Hubbard models
Bernhard Irsigler, Jun-Hui Zheng, Fabian Grusdt +1
We introduce three numerical methods for characterizing the topological phases of three-dimensional multiband Hubbard models based on twisted boundary conditions, Wilson loops, as…
Bulk topological proximity effect in multilayer systems
Jaromir Panas, Bernhard Irsigler, Jun-Hui Zheng +1
We investigate the bulk topological proximity effect in multilayer hexagonal lattice systems by which one can introduce topological properties into a system composed of multiple tr…
Local Chern marker of smoothly confined Hofstadter fermions
Urs Gebert, Bernhard Irsigler, Walter Hofstetter
The engineering of topological non-trivial states of matter, using cold atoms, has made great progress in the last decade. Driven by experimental successes, it has become of major…
Microscopic characteristics and tomography scheme of the local Chern marker
Bernhard Irsigler, Jun-Hui Zheng, Walter Hofstetter
The concept of the local Chern marker has gained a lot of attention especially in the field of ultracold quantum gases in optical lattices and artificial gauge fields. We investiga…