2024/07/14 by Zijun Chen, Yeshaiahu Fainman, Chen, Zijun +1
Medicine · Physics and Astronomy · #FOS: Physical sciences #Medical Imaging Techniques and Applications #Optics (physics.optics) #Quantum Physics (quant-ph) #Radiation Detection and Scintillator Technologies #Radioactive Decay and Measurement Techniques
paper · pdf · doi:10.48550/arxiv.2407.10231
openalex publication_date 2024/07/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
Photon triplet generation based on third-order spontaneous parametric down-conversion remains as an experimental challenge. The challenge stems from the trade-offs between source brightness and instrument noise. This work presents a probability theory of coincidence detection to address the detection limit in source characterization. We use Bayes' theorem to model instruments as a noisy communication channel and apply statistical inference to identify the minimum detectable coincidence rate. A triplet generation rate of 1-100 Hz is required for source characterization performed over 1-72 hours using superconducting nanowire single-photon detectors.