LKB - Bose-Einstein condensates

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Ultracold dysprosium

Current team: Jean-Baptiste Bouhiron, Jean Dalibard, Alexandre Evrard, Aurélien Fabre, Raphael Lopes, Sylvain Nascimbene, Tanish Satoor

Contacts: jean.dalibard@lkb.ens.fr, raphael.lopes@lkb.ens.fr, sylvain.nascimbene@lkb.ens.fr

Collège de France. 11 Place Marcelin Berthelot. 75005 Paris

This project consists in creating and studying complex states of quantum matter using ultracold dysprosium atoms. The complex electronic structure of this atom should allow one to explore novel physical behaviors, based on the large magnetic moment and/or on narrow optical transitions.

The electronic ground state of dysprosium is characterized by a large angular momentum J = 8. We are interested in the engineering of complex quantum states in the spin degree of freedom, based on the interaction with off-resonant laser fields. We recently manipulated the spin in quantum states with an enhanced sensitivity to magnetic fields compared to classical spin states.

We are also interested in the simulation of gauge fields, by coupling the spin and motional degrees of freedom. We recently engineered effective Landau levels – the quantum structure of levels at stake in the quantum Hall effect – in which the electronic spin plays the role of one spatial dimension. Our future research will aim at realizing interacting topological states of matter, such as quantum Hall states or topological superfluids.

Postdoc position available

This project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No 756722).