«Ironically,» Sasaki says, «advances [made for] QKD, such as new photon detectors with very low noise, low - loss optical circuits, et cetera., could make [such attacks] possible.» (sciencemag.org)
Experts have integrated thousands of single photon detectors onto a silicon chip, similar to that found in a digital camera. (sciencedaily.com)
For their system, the researchers set a laser next to a highly sensitive photon detector, which can record even a single particle of light. (sciencedaily.com)