2016/06/09 by Byoung-moo Ann, Byoung-Moo Ann, Younghoon Song +3 · 2 citations
Computer Science · Mathematics · Physics and Astronomy · #Computational physics #Correlation #Dead time #Detector #Mathematics #Noise (video) #Nonclassical light #Optics #Photon #Photon counting #Physics #Quantum Information and Cryptography #Quantum mechanics #Quantum optics and atomic interactions #Random lasers and scattering media #SIGNAL (programming language) #quant-ph
paper · pdf · doi:10.1103/physreva.93.063816
published in Physical Review A 93(6) (American Physical Society) · 8 pages, 5 figures
openalex publication_date 2016/06/09 · openalex created_date 2016/06/24 · arxiv created 2016/08/29 · arxiv updated 2016/08/30 · openalex updated_date 2026/08/05
We observe the three-photon correlation in nonclassical light sources by using an indirect measurement scheme based on the dead-time effect of photon-counting detectors. We first develop a general theory which enables us to extract the three-photon correlation from the two-photon correlation of an arbitrary light source measured with detectors with finite dead times. We then confirm the validity of our measurement scheme in experiments done with a cavity-QED microlaser operating with a large intracavity mean photon number exhibiting both sub- and super-Poissonian photon statistics. The experimental results are in good agreement with the theoretical expectation. Our measurement scheme provides an alternative approach for N-photon correlation measurement employing (N\ensuremath-1) detectors and thus a reduced measurement time for a given signal-to-noise ratio, compared to the usual scheme requiring N detectors.