{\rtf1\ansi\deff0\deftab360 {\fonttbl {\f0\fswiss\fcharset0 Arial} {\f1\froman\fcharset0 Times New Roman} {\f2\fswiss\fcharset0 Verdana} {\f3\froman\fcharset2 Symbol} } {\colortbl; \red0\green0\blue0; } {\info {\author Biblio 7.x}{\operator }{\title Biblio RTF Export}} \f1\fs24 \paperw11907\paperh16839 \pgncont\pgndec\pgnstarts1\pgnrestart Q. - Y. Liang, Venkatramani, A. V., Cantu, S. H., Nicholson, T. L., Gullans, M., Gorshkov, A. V., Thompson, J. D., Chin, C., Lukin, M. D., and Vuletic, V., ?Observation of three-photon bound states in a quantum nonlinear medium?, Science, vol. 359, no. 6377, pp. 783-786, 2018.\par \par O. Firstenberg, Peyronel, T., Liang, Q. - Y., Gorshkov, A. V., Lukin, M. D., and Vuletic, V., ?Attractive Photons in a Quantum Nonlinear Medium?, Nature (London), vol. 502, p. 71, 2013.\par \par }