Sprecher
Beschreibung
The ground and meta-stable clock state pair in ytterbium (Yb) provides an excellent resource for applications in quantum metrology, simulation and computation. Being capable of individually addressing the two optical clock qubit states in a state- selective manner enhances the controllability of such systems, allowing for novel methods for state preparation, read-out or Hamiltonian engineering. Importantly, we identified a practical route towards quantum simulation of U(1) quantum link models in 2D with fermionic atoms [1], which further paves the way towards simulations of models with non-Abelian symmetries based on the U(N) symmetric interactions of fermionic Yb atoms. As a first step in developing the experimental platform, we performed precise measurements of several tune-out and magic wavelengths, which allow for an accurate modelling of the state-dependent polarizabilities [2]. We further managed to demonstrate novel cooling schemes using the ultra-narrow clock transition, which significantly enhance the repetition rate of our quantum simulator.
[1] PRX Quantum 4, 020330 (2023)
[2] Phys. Rev. A 108, 053325 (2023)
