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Quantum Networks in Space

Wörner, Lisa (2023) Quantum Networks in Space. In: Photonic Quantum Technologies: Science and Applications Wiley. pp. 129-150. doi: 10.1002/9783527837427. ISBN 9783527414123.

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The inherent properties of quantum mechanics render it an important subject for fundamental research and applications alike. Entanglement stands out among those, allowing for novel secure communication and more rapid computation. To enable global secure communication, space based networks are required. A space network with trusted nodes for every user is an unviable feat, and could lead, given the amount of potential civil, governmental, and military users, to a cluttering of space. Additionally, global networks of trusted nodes exclude smaller to medium players from profiting from the quantum revolution and the benefits of secure communication. To remain inclusive to small businesses and enable broad usage of the technology, the operation of untrusted nodes in space is inevitable. Consequently, untrusted nodes need to be capable of receiving and re-transmitting the information with the possibility of storage of the information in-between. Hence, space-based quantum repeater, consisting of a receiver, a transmitter, and a coherent memory, could operate as untrusted nodes. In this chapter, the challenges, necessities, and opportunities for global quantum networks will be discussed. This includes novel techniques for quantum repeater and their current technology readiness level.

Item URL in elib:https://elib.dlr.de/195935/
Document Type:Contribution to a Collection
Title:Quantum Networks in Space
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Date:5 May 2023
Journal or Publication Title:Photonic Quantum Technologies: Science and Applications
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 129-150
EditorsEmailEditor's ORCID iDORCID Put Code
Keywords:quantum network, untrusted node, quantum repeater
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication, Navigation, Quantum Technology
DLR - Research area:Raumfahrt
DLR - Program:R KNQ - Communication, Navigation, Quantum Technology
DLR - Research theme (Project):R - Impulse Project Robust Global Quantum Networks [KNQ]
Location: Hannover
Institutes and Institutions:Institute for Satellite Geodesy and Inertial Sensing
Deposited By: Neidlinger, Tamira Sandrina
Deposited On:12 Jul 2023 07:21
Last Modified:12 Jul 2023 07:21

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