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We report on the experimental observation of a strongly interacting gas of ultracold two-electron fermions with an orbital degree of freedom and magnetically tunable interactions. This realization has been enabled by the demonstration of a novel kind of Feshbach resonance occurring in the scattering of two 173Yb atoms in different nuclear and electronic states. The strongly interacting regime at resonance is evidenced by the observation of anisotropic hydrodynamic expansion of the two-orbital Fermi gas. These results pave the way towards the realization of new quantum states of matter with strongly correlated fermions with an orbital degree of freedom. G. Pagano et al., See also the Physics Viewpoint by S. Cornish: S. Cornish |
Two electrons are better than one... In the Yb lab we produce Bose-Einstein condensates and degenerate Fermi gases of ytterbium atoms. These atoms offer metastable electronic states, ultranarrow clock transitions, multicomponent fermions with SU(N) interactions: a whole range of experimental tools that allow new possibilities for quantum simulation and quantum information processing.
Yb people
| Giammarco Masini Master student |
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| Tianwei Zhou Postdoctoral fellow |
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| Jacopo Parravicini Scientific staff |
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| Giacomo Cappellini Scientific staff |
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| Jacopo Catani Scientific staff |
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| Massimo Inguscio Scientific staff |
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| Leonardo Fallani Scientific staff |
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Former members:
| Rafael Emilio Barfknecht |
| Daniel Benedicto Orenes |
| Lorenzo Franchi |
| Giovanni Giusfredi |
| Jonathan T. Green |
| Lorenzo Livi |
| Pietro Lombardi |
| Marco Mancini |
| Pablo Cancio Pastor |
| Guido Pagano |
| Florian Schäfer |
| Carlo Sias |
| Daniele Tusi |
Yb contacts
For further information, request of material, job opportunities, please contact:
Leonardo Fallani
(fallani@lens.unifi.it)
Yb funding
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ERC CoG TOPSIM |
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QUANTERA QTFLAG |
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INFN FISh |