The cornerstone for 1000-fold improvement in communication rates for bridging long distances.
Diamond is of great importance for future technologies such as the quantum internet. Special defect centers can be used as quantum bits (qubits) and emit single photons. To enable data transmission with practicable communication rates over long distances in the quantum network, all photons must be collected in optical fibers and transmitted without being lost. It must also be ensured that these photons all have the same color, i.e. the same frequency. ...
