https://www.nature.com/articles/s41467-025-67932-w
We incorporate a 107 GHz superconducting resonator and a thin-film lithium niobate optical racetrack resonator so that the RF photons can be coherently transduced into optical photons. This is a first-of-its-kind demonstration, in part, enabled by careful co-packaging of rectangular WR10 waveguides and integrated photonics. Devices like these are a vital component in the scalability of quantum hardware and open up an underutilized frequency band for sensing, particularly at elevated operating temperatures (1 K vs 10 mK).
Why does this matter?→ Quantum transduction benefits from higher frequencies (lower thermal noise and higher efficiency)→ 6G and beyond will use mm-wave spectrum→ Opening up a new range of frequencies for quantum science (cf. mm-wave workshop last year Q-Farm mm-Wave Workshop April 3-4, 2025)
