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A trusted node–free eight-user metropolitan quantum communication network

Quantum communication is rapidly gaining popularity due to its high security and technological maturity. However, most implementations are limited to just two communicating parties (users). Quantum communication networks aim to connect a multitude of users. Here, we present a fully connected quantum...

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Detalles Bibliográficos
Autores principales: Joshi, Siddarth Koduru, Aktas, Djeylan, Wengerowsky, Sören, Lončarić, Martin, Neumann, Sebastian Philipp, Liu, Bo, Scheidl, Thomas, Lorenzo, Guillermo Currás, Samec, Željko, Kling, Laurent, Qiu, Alex, Razavi, Mohsen, Stipčević, Mario, Rarity, John G., Ursin, Rupert
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7467697/
https://www.ncbi.nlm.nih.gov/pubmed/32917585
http://dx.doi.org/10.1126/sciadv.aba0959
Descripción
Sumario:Quantum communication is rapidly gaining popularity due to its high security and technological maturity. However, most implementations are limited to just two communicating parties (users). Quantum communication networks aim to connect a multitude of users. Here, we present a fully connected quantum communication network on a city-wide scale without active switching or trusted nodes. We demonstrate simultaneous and secure connections between all 28 pairings of eight users. Our novel network topology is easily scalable to many users, allows traffic management features, and minimizes the infrastructure as well as the user hardware needed.