Spatial division multiplexing for cold-atom-based quantum memory
Optical quantum memory, a device that enables the storage and retrieval of photonic qubits, is an essential component for a wide range of applications in quantum information science. The host demonstrated state-of-the-art memory based on large ensembles of cold atoms, with a storage-and-retrieval efficiency close to 90% for single photons. With this milestone reached, a timely and crucial effort is to develop multiplexed memories. This, in turn, should lead to higher-capacity network channels, bringing quantum networks one step closer to reality. In this context, the proposed research will uniquely adapt and exploit Space Division Multiplexing, a booming approach in classical telecommunications, to create and harness parallelized quantum links. The fellow, with a strong background in atomic physics and light shaping, will use his expertise to develop the project efficiently while expanding his skill-set to quantum information networks and developing his independence and leadership during the fellowship.