Philippe
Eberhard
Kwiat, P., Waks, E., White, A., Appelbaum, I., & Eberhard, P. (1999). Ultrabright source of polarization-entangled photons. Phys. Rev. A, 60, R773—R776. http://doi.org/10.1103/PhysRevA.60.R773 (Original work published 2025)