What we can learn about single photons in a two-photon interference experiment
Dmitry Strekalov, T. B. Pittman, Yanhua H. Shih · Physical Review A · 1998
We report a two-photon interference experiment in which a single-photon wave-packet concept fails to give a correct prediction, but the two-photon wave-packet, or biphoton, concept is helpful. Based on our experiment, we argue that single-photon wave-packet information available from two-photon measurement is limited.