Vortices in a dysprosium gas

Vortices in a dysprosium gas

By stirring the magnetic field which polarizes the atoms in a dysprosium condensate, we were able to generate vortices–tiny quantum tornadoes–in a dipolar gas for the first time!

Bloch Oscillations

Bloch Oscillations

By letting an erbium quantum droplet fall under gravity through an optical lattice, it is possible to understand the inter-atomic interactions and quantum fluctuations through variations of the Bloch oscillation.  

Long-range interactions in the ultracold 2022-registration open

Long-range interactions in the ultracold 2022-registration open

ERC Advanced Grant DymetEr has been funded!

ERC Advanced Grant DymetEr has been funded!

Happy 10th Birthday to the first Erbium BEC!

Happy 10th Birthday to the first Erbium BEC!

Post-Doc Opening 2022!

Post-Doc Opening 2022!

Phase coherence in out-of-equilibrium supersolid states of ultracold dipolar atoms

Phase coherence in out-of-equilibrium supersolid states of ultracold dipolar atoms

By quenching the contact interaction, it is possible to destroy the phase coherence in a dipolar supersolid. However, the supersolidity is “repaired” when reversing the dephasing process.  

3D array of large-spin fermions

3D array of large-spin fermions

In joint theoretical and experimental work with our theory colleagues A.-M. Rey (JILA) and B. Zhu (ITAMP) we investigate dipolar induced magnetization-conserving spin exchange dynamics with fermionic Er in a 3D optical lattice

The ERBIUM lab

The ERBIUM lab

The ERBIUM lab

Excitation spectrum of a trapped dipolar supersolid

Excitation spectrum of a trapped dipolar supersolid

In a combined theory and experimental work, we study the elementary excitations of trapped dipolar quantum gases crossing from regular superfluid to supersolid.

The Dipolar Quantum Gas Group is one of the three teams composing the Innsbruck Center for Ultracold Atoms and Quantum Gases. We focus on highly magnetic Lanthanide atoms, Erbium and Dysprosium, which are a novel and powerful resource for realizing dipolar quantum matter.

The group, led by Francesca Ferlaino, is located at the  Institute for Experimental Physics (IExP) of the University of Innsbruck and at the Institute for Quantum Optics and Quantum Information (IQOQI) of the Austrian Academy of Sciences.

We have three experimental apparatuses. The ERBIUM machine operates on Er atoms and produced the first Er Bose-Einstein condensate and degenerate Fermi gas. The ER-DY machine is studying degenerate mixtures of two different lanthanides: Er and Dy. The T-Reqs is currently under construction and aims at studying Rydberg states of Er. A new theory sub-division within our group is under development.

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News from the labs
Now published in Nature Physics, we have observed the first vortices in a dipolar quantum gas! The dipolar interaction brings forth a plethora of new physics to vortices, that we begin to investigate finding the coveted stripe vortex lattice!
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Studying erbium atoms in a one-dimensional lattice, we utilize Bloch oscillations to evaluate the role played by the quantum fluctuations and observe an interaction-driven transition to a localized state. Additionally, we reveal the existence of lattice-bound macrodroplets and two-dimensional bright solitons.
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Together with Thomas Pohl and others from Aarhus University we explore the role of temperature has on the supersolid formation, matching beautifully with our Er-Dy lab results!
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Group news
Gabriele, PhD candidate in our Erbium Lab, won the best poster prize at the EMMI Workshop on Long-Range Ultracold Interactions!
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Louis Lafforgue successfully defends his Masters' thesis!
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Alex Patscheider successfully defends his PhD thesis and becomes Doctor of Philosophy!
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Welcome and goodbye
Welcome to Clemens, who has joined the Er-Dy team as PhD Student. Clemens joined us from the Stefan Kuhrs Rb-quantum gas microscope group.
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Welcome back to Daniel Grün, who is joining the T-Reqs Lab after spending almost a year in Edmonton (Canada) working with an optical-tweezers setup.
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Welcome to Laura Uiberreiter, who is joining the administration team.
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