Single Quantum

Single Quantum, founded in 2012 as a spin-off from TU Delft, is a European leader in Superconducting Nanowire Single Photon Detectors (SNSPDs) technology. Their flagship Eos system achieves over 90% detection efficiency, ultra-high timing resolution below 15 picoseconds, count rates exceeding 80 MHz, and dark count rates below 10 Hz. In 2025, Single Quantum partnered with CERN's Quantum Technology Initiative and Qunnect for quantum networking experiments, with CERN integrating their detectors with White Rabbit time-synchronization technology to achieve sub-nanosecond alignment of distant nodes. The company has installed photon detector systems across the United States, Europe, Canada, UK, Japan, China, Australia, Israel, and South America. Their detectors are essential for quantum key distribution (partnered with Toshiba in 2024 to extend QKD range over 300km), quantum computing readout, and quantum sensing applications requiring the highest performance single photon detection.