This paper experimentally demonstrates a link layer and a physical layer protocol for entanglement-based quantum networks using remote solid-state quantum network nodes. The link layer abstracts the physical-layer entanglement attempts into a robust, platform-independent entanglement delivery service. The system performs full state tomography of the delivered entangled states and remote preparation of a qubit state. The results show a transition from physics experiments to quantum communication systems, enabling development and testing of future quantum network components.

M. Pompili, C. Delle Donne, I. te Raa, B. van der Vecht, M. Skrzypczyk, G. Ferreira, L. de Kluijver, A. J. Stolk, S. L. N. Hermans, P. Pawełczak, W. Kozlowski, R. Hanson, S. Wehner