Quantum sensor characterisation for future detectors

QTI CoC2 aims at exploring novel cryogenic sensor technologies for future particle physics detectors, with particular emphasis on superconducting and quantum-enabled devices such as Superconducting Nanowire Single-Photon Detectors (SNSPDs), Transition Edge Sensors (TES), and related low-temperature detector technologies. These sensors offer exceptional timing resolution, high-efficiency photon detection, ultra-low-noise operation, and sensitivity to new observables that could enhance future collider and rare-event experiments.

Quantum-inspired sensors may also provide additional information, including fast timing capabilities and sensitivity to particle polarization. The programme is closely connected to the European DRD5 detector R&D initiative and aims to exploit CERN’s beam-test infrastructure to characterise quantum sensors under realistic
high-energy particle-beam conditions. Beam tests at CERN provide repeatable and controllable environments that are not typically available in quantum technology laboratories.

Current studies include applications of SNSPD technologies to: dark matter detectors, precision timing instrumentation, and luminosity monitoring concepts for
future collider experiments.