Quantum interface between microwave and telecom light

Quantum interface between microwave and telecom light

The group of Johannes Fink at IST Austria has demonstrated a pulse electro-optical transducer between microwave and telecom photons (arXiv:2107.08303). The impressively low amount of added noise (less than a single photon) is a big step forward toward our goal of realizing quantum-coherent interfaces between superconducting quantum processors and flying photonic qubits.