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Berlin 2024 – wissenschaftliches Programm

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QI: Fachverband Quanteninformation

QI 3: Quantum Communication

QI 3.5: Vortrag

Montag, 18. März 2024, 10:30–10:45, HFT-TA 441

Limits on the repeater rate in multipartite quantum routers with quantum memories — •Julia Alina Kunzelmann, Nikolai Wyderka, Hermann Kampermann, and Dagmar Bruss — Institut für Theoretische Physik III, Heinrich-Heine-Universität Düsseldorf

Quantum routers play an important role in quantum communication networks, enabling the transmission of quantum information over longer distances. To increase the repeater rate in multipartite networks, multiplexing between quantum memories can be used. In our work, we investigate the limitations of repeater rates in quantum networks with N parties, each equipped with m memories. Based on our generalized multiplexing scheme for N parties we analyze the relation between the maximally achievable repeater rate and the number of parties and memories included in the network. We present both, numerical and analytical results.

Keywords: Multipartite quantum networks; Quantum router; Repeater rate; Quantum memories; Multiplexing

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