In April 2015, we started a new lab with the aim of studying many-body quantum physics with ultracold strontium atoms in optical lattices. Our lab is located at the Max-Planck-Institute for Quantum Optics in Garching, Germany, in Immanuel Bloch’s Quantum Many-Body Physics Division.
Within the last ten years, we have witnessed an exciting interaction between precision measurement and many-body physics because the world’s most accurate and precise clocks — operating at the 2 × 10-18 level — are based on fermionic 87Sr trapped in optical lattices. Doing measurements with 18 digits of precision required understanding the interactions between the strontium atoms at an unprecedented level.
We believe that the strontium atom offers many more exciting possibilities to improve our understanding of many-body quantum physics. We are working towards
- Spin-dependent lattices for the clock states using tuneout wavelengths
- Very large and homogeneous lattice systems using in-vacuum buildup cavities (see Fig. 2)
- Fermi gases with SU(N = 10) collisional symmetry
- Ultraviolet lattices with short spacings and strong interactions
- Single-site and single-atom resolved quantum gas microscopy for strontium
If you would like to learn more, here is a list of the most relevant review papers related to our work:
Quantum simulations with ultracold quantum gasesNature Physics82672012
Optical atomic clocksReviews of Modern Physics876372015
Quantum computing and quantum simulation with group-II atomsQuantum Information Processing108652011