Single-photon detectors for optical quantum information applications

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Chip-based quantum key distribution (2015, background): “Together with the development of integrated single photon detectors[18], these devices point the way to seamless integration with existing and emerging classical communication systems, including microelectronics.”
Quantum computers (2010, positive): “Today, efforts are focused on high-efficiency single-photon detectors 16,17 and sources 18,19 , devices that would enable a deterministic interaction between photons 11,12 , and chip-scale waveguide quantum circuits 14,20 .”
Circuit quantum electrodynamics (2020, methodology): “The development of single-photon detectors at infrared, optical and ultraviolet frequencies has been crucial to the field of quantum optics and in fundamental tests of quantum physics (Eisaman et al., 2011; Hadfield, 2009).”
Integrated photonic quantum technologies (2019, background): “ng implementations [57–59]. Integrated single-photon detectors. On-chip detection of single-photons allows the ultimate readout of quantum information. Nowadays several SPD technologies are available [60], e.g., avalanche photodiodes, superconducting nanowire SPD (SNSPD), and transition edge sensor ”
Large-scale quantum photonic circuits in silicon (2016, methodology): “Single-photon detection at 1550 nm has been performed using off-chip InGaAs single-photon avalanche detectors, superconducting nanowire single-photon detectors (SNSPDs), and superconducting transition edge sensors [102].”