Rigorous criterion for characterizing correlated multiphoton emissions.
Strong correlation of photons, particularly in the single-photon regime, has recently been exploited for various applications in quantum information processing. Existing correlation measurements, however, do not fully characterize multi-photon correlation in a relevant context and may pose limitations in practical situations. We propose a conceptually rigorous, but easy-to-implement, criterion for detecting correlated multi-photon emission out of a quantum optical system, drawn from the context of wavefunction collapse. We illustrate the robustness of our approach against experimental limitations by considering an anharmonic optical system.
Hong
Hyun-Gue
HG
Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea.
Nha
Hyunchul
H
Lee
Jai-Hyung
JH
An
Kyungwon
K
D000465:Algorithms; D015233:Models, Statistical; D055096:Optical Devices; D055095:Optics and Photonics; D017785:Photons; D016012:Poisson Distribution; D011789:Quantum Theory; D012542:Scattering, Radiation; D013053:Spectrophotometry / Q000379:methods