Erbium Team 2023

Erbium Team 2023

Bloch Oscillations

Bloch Oscillations

We study Bloch oscillations of an erbium quantum droplet  

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.

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.

Polarizability of Erbium

Polarizability of Erbium

In collaboration with our theory colleagues from Paris, we have determined the dynamical polarizability of ultracold erbium atoms.

Crossover from a BEC to a macrodroplet

Crossover from a BEC to a macrodroplet

Together with our theory colleagues from Hannover, we have investigated the formation of a macrodroplet state in an ultracold bosonic gas of erbium atoms.

Extended Bose-Hubbard Model

Extended Bose-Hubbard Model

We have studied the extended Bose-Hubbard Model with dipolar Er atoms as well as how the superfluid-to-Mott-insulator transition is modified by the dipole-dipole interaction.

Quantum Chaos in Ultracold Collisions of Erbium

Quantum Chaos in Ultracold Collisions of Erbium

We have studied the scattering behavior of ultracold Er atoms and observed an enormous number of Fano-Feshbach scattering resonances.

ERBIUM LAB

Dipolar Quantum Gases of Erbium Atoms 

Erbium has very special properties that make it unique: a very strong magnetic moment, many valence electrons, clock transitions, and an extremely rich internal atomic structure.

In the ERBIUM LAB we bring all these properties in the quantum regime together to study strongly dipolar gases both in the continuum and in optical lattices.  Recently, the ERBIUM team has observed roton excitations, the counterintuitive and long-sought supersolid states, deformed Fermi surface, Bose-Hubbard systems with long-range interaction, spin manipulation via the clock transition, and much more!

A full list of the ERBIUM LAB Publications can be found here

Interested in joining us? Check out here.

Lab news
Welcome to Daniel
Welcome to Daniel Grün, who is joining the Erbium team in the frame of our Excellence Fellowship for master students.
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Goodbye to Lauriane
After 5 productive years in the Dipolar Quantum Gas Group, Lauriane Chomaz is moving to the University of Heidelberg as Tenure-Track Professor. Congratulation Lauriane! We wish you great success in your next adventure in physics
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Supersolidity in an elongated dipolar condensate
Lauriane and Francesca, together with Blair Blakie and Danny Bailly (Otago University), theoretically studied the supersolid phase diagram of dipolar quantum Bose gases in cylindrical geometries. The work is now published in Physical Review Research.
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Robustness of gauge-invariant dynamics against defects in ultra cold atom gauge theories
Bing Yang collaborate with Had C. Halimeth, Robert Ottl, Ian P. McCulloch and Philipp Hauke in theoretically studying the robustness of an ultra cold-atom quantum simulator against defects.
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Dani is now Doctor of Philosophy
Dani held his defense for his PhD thesis and is now officially a Doctor of Philosophy. He will continue to carry out his research as a post-doctoral fellow beginning of next year in the group of David Norris at the ETH. Congratulations and good luck!
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Welcome to Amal and Simon
Welcome to Amal El-Arrach and Simon Gschwendter, who have joined respectively the T-REQS and the Erbium teams for their master thesis.
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Lab Team
Francesca Ferlaino

Francesca Ferlaino, Univ.-Prof. Dr.

Group Leader / PI

Manfred Mark

Manfred Mark, Dr.

Senior Scientist/Research Assistant

Andrea Di Carli

Andrea Di Carli, Dr.

Academy Scientist/Research Assistant

Ferdinand Claude

Ferdinand Claude, Dr.

Post-Doc

Arfor Houwman

Arfor Houwman, MSc.

PhD Student (ERBIUM)

Louis Lafforgue

Louis Lafforgue, MSc.

PhD Student (ERBIUM)

Sarah Embacher

Sarah Embacher, BSc.

Master Student (ERBIUM)