S.
H.
Cantu
. Y. Liang, Q. ., Venkatramani, A. V., Cantu, S. H., Nicholson, T. L., Gullans, M. J., Gorshkov, A. V., … Vuletic, V. . (2018). Observation of three-photon bound states in a quantum nonlinear medium. Science, 359, 783–786. http://doi.org/10.1126/science.aao7293 (Original work published February 2018)