PT Unknown AU Schwartz, M Schmidt, E Rengstl, U Hornung, F Hepp, S Portalupi, SL Llin, K Jetter, M Siegel, M Michler, P TI Fully On-Chip Single-Photon Hanbury-Brown and Twiss Experiment on a Monolithic Semiconductor-Superconductor Platform PY 2018 PG 21 LA english ER