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

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 (2020) A trusted node-free eight-user metropolitan quantum communication network. Science Advances, 6 (36). ISSN 2375-2548

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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.

Item Type: Article
Uncontrolled Keywords: quantum communication; networks
Subjects: TECHNICAL SCIENCES > Electrical Engineering > Electronics
Divisions: Division of Experimental Physics
Division of Physical Chemistry
Project titleProject leaderProject codeProject type
Potpora vrhunskim istraživanjima Centra izvrsnosti za napredne materijale i senzore-Mile Ivanda; Milko Jakšić; Mario Stipčević; Marko KraljKK.
Depositing User: Mario Stipčević
Date Deposited: 04 Sep 2020 07:42
DOI: 10.1126/sciadv.aba0959

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