Multiplexed entanglement-based quantum cryptography: concept and implementations
Martin Bohmann, Evelyn A. Ortega, Johannes Pseiner, Lukas Achatz, Lukas Bulla, Krishna Dovzhik, R. F. Shiozaki, Rupert Ursin · Conference on Lasers and Electro-Optics · 2021
We introduce a general scheme for increasing secure key rates in entanglement-based cryptography exploiting multiple degrees of freedom. We experimentally exemplify this scheme through spatial and wavelength multiplexing. Scalability of our approach is demonstrated.