Ad-hoc hybrid-heterogeneous metropolitan-range quantum key distribution network

• URL: http://arxiv.org/abs/2412.07473v1
• Date: Tue, 10 Dec 2024 12:42:26 GMT
• Title: Ad-hoc hybrid-heterogeneous metropolitan-range quantum key distribution network
• Authors: Matthias Goy, Jan Krause, Ömer Bayraktar, Philippe Ancsin, Florian David, Thomas Dirmeier, Nico Doell, Jansen Dwan, Friederike Fohlmeister, Ronald Freund, Thorsten A. Goebel, Jonas Hilt, Kevin Jaksch, Oskar Kohout, Teresa Kopf, Andrej Krzic, Markus Leipe, Gerd Leuchs, Christoph Marquardt, Karen L. Mendez, Anja Milde, Sarika Mishra, Florian Moll, Karolina Paciorek, Natasa Pavlovic, Stefan Richter, Markus Rothe, René Rüddenklau, Gregor Sauer, Martin Schell, Jan Schreck, Andy Schreier, Sakshi Sharma, Simon Spier, Christopher Spiess, Fabian Steinlechner, Andreas Tünnermann, Hüseyin Vural, Nino Walenta, Stefan Weide,
• Abstract summary: This paper presents the development and implementation of a versatile ad-hoc metropolitan-range Quantum Key Distribution (QKD) network. The approach integrates various types of physical channels and QKD protocols, and a mix of trusted and untrusted nodes. The study also showcases the successful establishment of a quantum-secured link to a cloud server.
• Score: 1.7565628063932606
• License:
• Abstract: This paper presents the development and implementation of a versatile ad-hoc metropolitan-range Quantum Key Distribution (QKD) network. The approach presented integrates various types of physical channels and QKD protocols, and a mix of trusted and untrusted nodes. Unlike conventional QKD networks that predominantly depend on either fiber-based or free-space optical (FSO) links, the testbed presented amalgamates FSO and fiber-based links, thereby overcoming some inherent limitations. Various network deployment strategies have been considered, including permanent infrastructure and provisional ad-hoc links to eradicate coverage gaps. Furthermore, the ability to rapidly establish a network using portable FSO terminals and to investigate diverse link topologies is demonstrated. The study also showcases the successful establishment of a quantum-secured link to a cloud server.

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