Various Scientific News

Category for scientific news not related to a particular group (E.g. single author papers).

Der Suprafestkörper: a popular science article on the dipolar supersolid!

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imageIf you have been searching for a high-level overview of the dipolar supersolid phase, look no further than this open access article by Prof. Francesca Ferlaino and Dr. Manfred Mark! Newly published in the journal “Physik in unserer Zeit”, this German language primer lays out the historical background, newly discovered properties and open questions which remain about this paradoxical quantum phase. See the full article below:

Ferlaino, F. and Mark, M.J. (2024), Der Suprafestkörper. Phys. Unserer Zeit. https://doi.org/10.1002/piuz.202301692

A Thouless pump with dipolar interactions

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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 article can be found here: Quantum, the pre-print can be accessed here: arXiv

Francesca wins Science Prize from Südtiroler Sparkasse Foundation

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Südtiroler Sparkasse Foundation award ceremony – 24 January 2024

Francesca was awarded the Südtiroler Sparkasse Foundation’s Science Prize for exceptional research achievements on the 24th of January 2024 . These awards recognize outstanding scientific achievements by scientists working at the University of Innsbruck.

 

Vice-Rector Bernhard Fügenschuh and the President of the Foundation Konrad Bergmeister alongside Prize Science winners Hannes Pichler and Francesca Ferlaino.
Vice-Rector Bernhard Fügenschuh and the President of the Foundation Konrad Bergmeister alongside Science Prize winners Hannes Pichler and Francesca Ferlaino.

A Thouless pump with dipolar interactions

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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

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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.

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