Study of quantum degenerate phase using a ultracold ytterbium atomic gas in an optical lattcie

我们已经成功地利用核自旋为5/2的173 Yb的费米同位素建立了SU（6）Mott绝缘体态，证明了增强的Pomeranchuk冷却效应，建立了玻色子和费米子的混合Mott绝缘体，以及具有高自旋对称性的Fermi-Fermi混合体。此外，我们还成功地将光学Feshbach共振技术应用于玻色-爱因斯坦凝聚体和费米子的p波相互作用，发现了基态和亚稳态之间的磁Feshbach共振。

We have succeeded in the creation of a SU(6) Mott insulator state using fermionic isotope of 173Yb with nuclear spin 5/2, the demonstration of enhanced Pomeranchuk cooling effect, the creation of mixed Mott insulator of boson and fermion, and the Fermi-fermi mixture with high spin symmetry. In addition, we have successfully applied optical Feshbach resonance technique to a Bose-Einstein condensate and fermions with a p-wave interaction, and magnetic Feshbach resonance between the ground and metastable states were discovered.