Microwave spectroscopy and multi-channel quantum defect analysis of ytterbium Rydberg states
The study used microwave spectroscopy and quantum defect theory to map out complex Rydberg states in Ytterbium atoms (174Yb and 171Yb). Researchers extended their modeling to include higher angular momentum states, revealing that for l=4, spin-orbit coupling is the dominant force. This detailed characterization helps in designing high-fidelity quantum gates.