Multiplexed entanglement of multi-emitter quantum network nodes

Demonstrates a two-node nanophotonic network with multiple spectrally distinguishable ${}^{171}{\mathrm{Yb}}^{3+}$ ions. Frequency-erasing photon detection and real-time feedforward produced remote entanglement; multiplexing two ion pairs increased the entanglement rate, and three distinguishable ions were prepared in a multipartite W state.

Links

• Journal: Nature

Zoo Links

• rare-earth-ion-qubit