<div class="csl-bib-body">
<div class="csl-entry">Kanitschar, F. P., & Pacher, C. (2024, September 5). <i>Security of Multi-User Quantum Key Distribution with Discrete Modulation</i> [Poster Presentation]. QCrypt 2024, Vigo, Spain. http://hdl.handle.net/20.500.12708/203025</div>
</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/203025
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dc.description.abstract
The conventional point-to-point setting of Quantum Key Distribution (QKD) typically considers two directly connected remote parties that aim to establish secret keys. However, almost all digital communication tasks involve multiple nodes and complex network architectures. Thus, it is essential to adapt and integrate QKD protocols and their security analyses to accommodate these complex environments and ensure secure communication across interconnected systems. This work proposes a natural generalization of a well-established point-to-point discrete modulated (DM) continuous-variable (CV) QKD protocol to the multi-party setting. We explore four different trust levels among the communicating parties and provide secure key rates in lossy and noisy channels. Our study shows that discrete modulated CV-QKD is a suitable candidate to connect several dozens of users in a point-to-multipoint network, achieving high rates at low cost, using off-the-shelf components employed in modern communication infrastructure.
en
dc.description.sponsorship
European Commission
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dc.language.iso
en
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dc.subject
Quantum Key Distibution
en
dc.subject
QKD
en
dc.subject
Quantum Communication
en
dc.subject
Quantum Information
en
dc.subject
Quantum Technology
en
dc.title
Security of Multi-User Quantum Key Distribution with Discrete Modulation
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.contributor.affiliation
Austrian Institute of Technology, Austria
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dc.relation.grantno
101070168
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dc.type.category
Poster Presentation
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tuw.project.title
HyperSpace
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tuw.researchTopic.id
Q3
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tuw.researchTopic.id
Q1
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tuw.researchTopic.name
Quantum Modeling and Simulation
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tuw.researchTopic.name
Photonics
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tuw.researchTopic.value
50
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tuw.researchTopic.value
50
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tuw.publication.orgunit
E141-08 - Forschungsbereich Quantum Optics and Quantum Information
