Generation of four-photon GHZ states on a laser written integrated platform
Giacomo Corrielli, Mathias Pont, Andreas Fyrillas, Iris Agresti, Gonzalo Carvacho, Nicolas Maring, Pierre-Emmanuel Emeriau, Francesco Ceccarelli, Riccardo Albiero, Paulo Henrique Dias Ferreira, Niccolò Somaschi, Jean Sénellart, Martina Morassi, Aristide Lemaître, Isabelle Sagnes, P. Senellart, Fabio Sciarrino, Marco Liscidini, Nadia Belabas, Roberto Osellame · 2023
We present a laser-written glass photonic circuit that, in synergy with a quantum dot based single photon source, generates a four-photon Greenberger-Horne-Zeilinger entangled state at the rate of 0.5 Hz with 86.0 ± 0.4% fidelity.