Optimal resource allocation for flexible-grid entanglement distribution networks

Autor: Alnas, J., Alshowkan, M., Rao, N. S. V., Peters, N. A., Lukens, J. M.
Rok vydání: 2022
Předmět:
Zdroj: Opt. Express 30(14), 24407-24420 (2022)
Druh dokumentu: Working Paper
DOI: 10.1364/OE.458358
Popis: We use a genetic algorithm (GA) as a design aid for determining the optimal provisioning of entangled photon spectrum in flex-grid quantum networks with arbitrary numbers of channels and users. After introducing a general model for entanglement distribution based on frequency-polarization hyperentangled biphotons, we derive upper bounds on fidelity and entangled bit rate for networks comprising one-to-one user connections. Simple conditions based on user detector quality and link efficiencies are found that determine whether entanglement is possible. We successfully apply a GA to find optimal resource allocations in four different representative network scenarios and validate features of our model experimentally in a quantum local area network in deployed fiber. Our results show promise for the rapid design of large-scale entanglement distribution networks.
Comment: 13 pages, 8 figures
Databáze: arXiv