Silent Waves

Silent Waves develops traveling-wave parametric amplifiers (TWPAs) for qubit readout in quantum computers. Its website says these amplifiers are used to improve measurement fidelity, enable multiplexing, and support scalable readout architectures. The company presents its products as serving high-performance superconducting quantum systems and describes expertise in quantum electronics, superconductivity, and fabrication of quantum devices.

The company traces its origins to research started by founders Nicolas Roch and Luca Planat at CNRS Institut Néel in Grenoble in 2016, with the business taking shape in 2020 and Baptiste Planat joining as a co-founder in 2022. Silent Waves says it expanded into the commercial quantum sector in 2024 after early collaborations with laboratories and research institutions. Its listed products include The Argo, The Carthago, and The Zephyr, and its website gives an address in Grenoble, France.