A Thouless pump with dipolar interactions

Thouless pumping represents a powerful concept to probe quantized topological invariants in quantum systems. We explore this mechanism in a generalized Rice-Mele Fermi-Hubbard model characterized by the presence of competing onsite and intersite interactions. While large on-site repulsion leads to a breakdown of quantized pumping , sufficiently large intersite interactions allow for an interaction-induced recovery of Thouless pumps. The stable topological transport at large interactions is connected to the presence of a spontaneous bond-order-wave in the ground-state phase diagram of the model. We also discuss a concrete experimental setup based on ultracold magnetic atoms in an optical lattice.

The pre-print can be accessed here: arXiv

LFUI Guest Professorship granted

Luca Barbiero
Politecnico di Torino, Italy

Our group is very happy to announce that Dr. Luca Barbiero, currently Asssistent Professor at Politecnico di Torino, will visit us for a LFUI Guest Professorship for two months during October and November 2023. During his stay we will together work on new ideas on how to use our experimental dipolar platforms for the quantum simulation of Bose- and Fermi-Hubbard models with strong dipolar interactions. He will also give a special lecture on equilibrium and out-of-equilibrium properties of dipolar lattice systems to interested Master- and PhD-students.

Summer 2023: Aurora Excellence Fellowship Program


OPEN CALL – The Aurora Excellence Fellowship Program for Visiting Bachelor, Master and PhD Students is now accepting applications. This internship program aims to enhance scientific collaboration and exchange in the field of quantum science and technology between the University of Naples Federico II and Universität Innsbruck, both members of the Aurora European Universities Alliance.

More information:


Call for PhD students

Call for Bachelor/Master students