A transducer capable of converting single microwave and optical photons with low loss and added noise could lay the foundation for a quantum network. Our strategy for building such a device uses an acoustic resonator as an intermediary between a superconducting transmon qubit and an optical cavity. We outline our progress and share insights into some obstacles that we have encountered when engineering a cryogenic-compatible optical cavity suitable for Brillouin optomechanics. We also discuss the materials and design choices for acoustic resonators in our transduction scheme.
Drimmer et al. (Wed,) studied this question.
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