
Antonio Ortu, Adrian Holzäpfel, Jean Etesse & Mikael Afzelius Abstract Long-duration quantum memories for photonic qubits are essential components for achieving long-distance quantum networks and repeaters. The mapping of optical states onto coherent spin-waves in rare earth ensembles is a particularly promising approach to quantum storage. However, it remains challenging to achieve long-duration storage at the […]
Storage of photonic time-bin qubits for up to 20 ms in a rare-earth doped crystal (a)