Erlangen 2018 – scientific programme
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A: Fachverband Atomphysik
A 42: Poster Session IIIb
A 42.4: Poster
Thursday, March 8, 2018, 16:15–18:15, Zelt Ost
A Versatile Strontium Quantum Gas Machine with a Microscope — •Oleksiy Onishchenko, Sergey Pyatchenkov, Alexander Urech, Georgios Siviloglou, and Florian Schreck — Institute of Physics, University of Amsterdam, Amsterdam, The Netherlands
Strontium opens new perspectives for Hamiltonian engineering because it is an alkaline-earth element with narrow intercombination lines, metastable excited electronic states, and ten collisionally-stable SU(N)-symmetric nuclear spin states.
We have built a new versatile Sr machine with quantum gas microscope capability. After precooling on a broad blue transition, we collect 107 atoms at 2 µK in a narrow-line red MOT, load them into a 1064 nm dipole trap, and evaporatively cool them to obtain either a BEC of 8 × 104 atoms or a degenerate Fermi gas with T/TF = 0.3. We have now also observed for the first time the doubly-forbidden 1S0 - 3P2 transition in 87Sr by direct laser excitation, which opens up possibilities for quantum computation [1] and gauge field engineering.
[1] Daley, A.J., Quant. Inform. Process. 10, 865 (2011).