Publications associated with Self-assembled structures and devices

Strongly interacting isotopic Bose-Fermi mixture immersed in a Fermi sea

Physical Review A - Atomic, Molecular, and Optical Physics 84 (2011)

CH Wu, I Santiago, JW Park, P Ahmadi, MW Zwierlein

We have created a triply quantum-degenerate mixture of bosonic K41 and two fermionic species K40 and Li6. The boson is shown to be an efficient coolant for the two fermions, spurring hopes for the observation of fermionic superfluids with imbalanced masses. We observe multiple heteronuclear Feshbach resonances, in particular a wide s-wave resonance for the combination K41-K40, opening up studies of strongly interacting isotopic Bose-Fermi mixtures. For large imbalance in the local densities of different species, we enter the polaronic regime of dressed impurities immersed in a bosonic or fermionic bath. © 2011 American Physical Society.

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