Two-orbital physics and SU(N)-symmetric interactions with ultracold gases of ytterbium in optical lattices

Seminario
21 maggio 2015
21 maggio 2015
Contatti: 
Dipartimento di Fisica, Segreteria
via Sommarive, 14 - 38123 Povo (Trento)
Tel. 
+39 0461 281504 - 1575 - 2042 - 1545
Fax 
+39 0461 281696

Ore 11.00

Luogo: Dipartimento di Fisica, via Sommarive, 14 - Aula seminari fisica teorica

  • Francesco Scazza (LMU and MPI, Munich, Germany)
Abstract:

Atoms with alkaline-earth-like electronic structure like ytterbium feature peculiar properties compared to alkali atoms, such as the existence of metastable excited states as well as a strong decoupling between the nuclear and the electronic angular momenta. Metastable states and the associated clock transitions are widely used for the implementation of optical lattice clocks, and recently attracted much interest regarding the realization of fermionic SU(N>2)-symmetric many-body systems and of two-orbital models, such as the Kondo lattice model. I’ll present the experimental observation of inter-orbital spin-exchange interactions between the two (meta-) stable states of Yb-173, as well as the study of fermionic lattice gases with SU(N)-symmetric interactions. I’ll also report on the realization of a state-dependent optical lattice for the investigation of two-orbital many-body physics, allowing to tune the mobility in a state-selective fashion and to prepare specific condensed-matter Hamiltonians.

Responsabile scientifico:
Dott. Iacopo Carusotto
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