Center for Ultracold Atoms and Quantum Gases, IExP and IQOQI, Innsbruck
Category for scientific news of the Erbium group
Our review on the quantum many-body physics in ultracold magnetic lanthanides is now published in Nature Physics!
Take a look here: Developments in atomic control using ultracold magnetic lanthanides
Applications have now opened for the Introductory Course on Ultracold Quantum Gases 2022 winter school. This will take place in Innsbruck between the 9th and 11th February 2022. Please visit the website for more information and to apply.
For the first time, we experimentally observe the transition at 1299nm in atomic erbium. We demonstrate coherent control and perform a detailed study of the transition parameters. Among the large variety of different energy levels available in erbium, the transition at 1299nm is of particular interest due to the associated narrow linewidth. In our experiment, we were able to measure an excited state lifetime of 178(19)ms, which corresponds to a linewidth of 0.9(1)Hz. In particular, we demonstrated the ability to control the atomic population in a coherent manner. In addition, in collaboration with G. Hovhannesyan and M. Lepers from the Laboratoire Interdisciplinaire Carnot de Bourgogne, we present experimental results as well as theoretical calculations on the atomic polarizabilities for the involved atomic states, indicating opportunities for the realization of magic-wavelength or magic-polarizability conditions.
Our work has been published in Physical Review Research.
Now in Physical Review Research!
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.
Now in Physical Review Research!
Bing Yang collaborate with Jad C. Halimeh, Robert Ott, Ian P. McCulloch and Philipp Hauke in theoretically studying the robustness of an ultracold-atom quantum simulator against defects. This work is now published on Physical Review Research and is highlighted as the “editor’s suggestion”.
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.