Authors: V. Krutyanskiy, M. Canteri, M. meraner, V. Krcmarsky, B.P. Lanyon
URL: https://journals.aps.org/prxquantum/abstract/10.1103/PRXQuantum.5.020308
A three-qubit quantum network node based on trapped atomic ions is presented. The ability to establish entanglement between each individual qubit in the node and a separate photon that has traveled over a 101-km-long optical fiber is demonstrated. By sending those photons through the fiber in close succession, a remote entanglement rate is achieved that is greater than when using only a single qubit in the node. Once extended to more qubits, this multimode approach can be a useful technique to boost entanglement-distribution rates in future long-distance quantum networks of light and matter.