In fundamental models of many-body physics, the coupling between fermions and bosons leads to a rich phase structure and dynamical behavior. Ultra-cold mixtures of fermionic and bosonic atoms emerge as an optimal experimental platform to investigate a wide range of few- and many-body properties of Fermi-Bose mixtures thanks to the high degree of control of two-body resonant interactions by means of the so called Feshbach resonances. Our project aims to explore the dynamics of quantum impurities in a bosonic medium (Bose polarons) by means of an ultra-cold mixture of fermionic 6Li and bosonic 133Cs atoms with inter-species tunable interactions. The main experimental aspects concerning the control of interactions in a 6Li-133Cs mixture, as well as the toolbox we are developing towards the realization of an ultra-cold version of the Bose polaron, will be addressed during this talk. An overview on theoretical predictions and possible scenarios that we expect to observe will be also briefly depicted.
Atomic Physics Department - Manuel Vogel