International Workshop on Ultracold Group II Atoms

Session

Session 3

23 févr. 2016, 09:20

Paris

10. Ultracold chemistry and asymptotic physics with diatomic strontium molecules

Tanya Zelevinsky (Columbia University)

23/02/2016 09:20

Invited talk

Simple molecules at ultracold temperatures, combined with high-resolution optical spectroscopy tools, open the door to molecular and fundamental science that is difficult to access with other physical systems. Here we discuss the studies of ultracold chemistry enabled by photodissociation of diatomic strontium molecules, including the phenomena of resonant and nonresonant barrier tunneling,...

24. Two-body and many-body physics in the ultracold regime: a quantum chemist’s perspective

Robert Moszynski (University of Warsaw)

23/02/2016 09:50

Invited talk

State-of-the-art ab initio methods of quantum chemistry have found numerous applications in many areas of atomic, molecular, condensed matter, and nuclear physics. During the last decade they have been applied with success to interpret precision experiments on two-body and many-body processes in atomic gases in the ultracold regime. In this talk I will present recent examples of successful...

36. News from the Amsterdam strontium quantum gas group

Prof. Florian Schreck (Institute of Physics, University of Amsterdam)

23/02/2016 10:20

Invited talk

I'll report on two research lines centered around ultracold strontium. The first research line has the goal to produce a quantum gas of RbSr ground-state molecules. We have created a ${}^{84}$Sr-${}^{87}$Rb Mott insulator and investigated STIRAP molecule association on the ${}^1$S${}_0$-${}^3$P${}_1$ intercombination line. We found only very weak transitions between free atoms and optically excited...

26. Ultracold Ytterbium Atoms in Dynamically Tunable Optical Lattices

Dr Shintaro Taie (Kyoto University)

23/02/2016 11:10

Invited talk

Dynamical controllability of the system parameters in ultracold atomic gases has made it possible to observe diverse kind of quantum dynamics. In this talk, we present the optical-lattice realization of a Lieb lattice [1], which plays an important role in quantum magnetism. Making full use of the tunability of the lattice potential, we load a Bose condensate of ${}^{174}$Yb into the excited...

17. High-resolution spectroscopy of ultracold Ytterbium atoms on the clock transition

Dr Fabrice Gerbier (Laboratoire Kastler Brossel, Collège de France, ENS, CNRS, UPMC)

23/02/2016 11:40

Invited talk

I will describe our experimental results on spectroscopy with quantum-degenerate bosonic gases. In the experiment, a gas of bosonic Ytterbium atoms is probed by exciting an ultra-narrow optical transition (the "clock transition") linking the ground state to a metastable excited state. I will preliminary spectroscopy experiments of Bose-Einstein condensates (BEC) and thermal gases, which...

52. Engineering new quantum systems with ultracold ${}^{173}$Yb fermions

Prof. Leonardo Fallani (University of Florence)

23/02/2016 12:10

Invited talk

I will report on new directions for quantum simulation with ultracold Fermi gases of two-electron ${}^{173}$Yb atoms. Manipulation of their electronic state on the ultranarrow clock transition allowed us to engineer a new kind of magnetic interaction [1] and to produce strongly interacting Fermi gases with orbital degree of freedom at a newly discovered orbital Feshbach resonance [2]. By...

14. Synthetic spin-orbit coupling in an optical lattice clock

M. Andrew Koller (JILA)

23/02/2016 12:40

Invited talk

We discuss a proposal to implement spin-orbit coupling in a 1D optical lattice clock operated with spin polarized fermionic alkaline-earth-atoms. The resulting single-particle and many-body physics can be probed at current clock operating temperatures thanks to the exquisite precision and sensitivity of the JILA Sr optical lattice clock. The system can realize an effective two-leg ladder where...