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.

First Dipolar Quantum Mixtures!

First Dipolar Quantum Mixtures!

We have created for the first time a dipolar quantum mixture by combining two highly magnetic atomic species, Erbium and Dysprosium.

Observation of roton quasiparticles in Erbium

Observation of roton quasiparticles in Erbium

In collaboration with our theory collaborators from Innsbruck and Hannover, we have observed for the first time so-called roton quasiparticles in an ultracold bosonic gas of erbium atoms.

Our dipolar quantum gas group …

Our dipolar quantum gas group …

…we work with highly magnetic Erbium and Dysprosium atoms, which we cool to Nanokelvin temperatures in oder to explore the fascinating physics of the quantum world.

Working in ultrahigh vacuum

Working in ultrahigh vacuum

All our experiments are carried out at pressures of 10^(-11) mbar. In order to achieve these ultrahigh vacuums, carefully designed chambers need to be machined and assembled.

Trapping and cooling of quantum particles

Trapping and cooling of quantum particles

In order to trap and cool Erbium and Dysprosium in magneto optical traps, we use one of their narrow-linewidth transitions. These transitions need yellow laser light for Erbium and red one for Dysprosium.

Trapping ultracold quantum particles

Trapping ultracold quantum particles

In order to investigate quamtumphysics, we need high power lasers to trap atoms.  In our experiments we utilise for example green light to realise an optical lattice in which the atoms can be arranged on a periodic crystal structure.

Back in 2010

Back in 2010

Yes, it started like this with our optical table arriving under the snow…

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 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.

News from the labs
Our publication on the first-time observation of roton quasiparticles in quantum gases was chosen by the editors of Nature Physics as one of their favorite papers of the past 15 years. To mark the anniversary of the journal, the most important works in the various disciplines of physics are presented.
Keep Reading ...
A key step in creating controlled interactions in dipolar quantum mixtures is the characterization of interspecies Feshbach resonances.
Keep Reading ...
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. Our work is now published in Physical Review Research.
Keep Reading ...

Group news
Hagai has been awarded a postdoctoral fellowship for quantum science and technology from the Israel Council of Higher Education.  As a postdoc, Hagai will study highly excited Erbium atoms trapped in a tweezer array in the T-REQS lab of Francesca Ferlaino.
Keep Reading ...
Benedict has successful completed his master project in the T-Reqs experiments on “Optimisation of a spin-flip Zeeman slower and laser locking to a broad spectral line”. Congratulation, Benedict!
Keep Reading ...
On July 23th, the Erbium Team was hiking to the Meissner Haus near Innsbruck to get together for a discussion day.
Keep Reading ...
Welcome and goodbye
Benedict Hochreiter has joined the T-REQS team for his master thesis.  He will concentrate on Rydberg physics in multi electron atoms.
Keep Reading ...
Welcome to Dr. Hagai Edri (right) and Julián Maloberti (left) who have joined the T-Reqs team as postdoctoral fellow and Phd student, respectively.
Keep Reading ...
Beginning in July, Russell joined the University of Innsbruck as an Assistant Professor. He is building a theory group within the Department of Experimental Physics, with a focus on ultracold quantum gases, most notably bringing his expertise on dipolar Bose-Einstein condensates. He is looking forward to working in Innsbruck and
Keep Reading ...