<div class="csl-bib-body">
<div class="csl-entry">Murta, G. (2024, August 26). <i>Anonymous communication in quantum networks</i> [Conference Presentation]. 24th Asian Quantum Information Science Conference, Sapporo, Japan. http://hdl.handle.net/20.500.12708/205619</div>
</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/205619
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dc.description
Invited talk titled: Anonymous communication in quantum networks
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dc.description.abstract
A fundamental cryptographic task is secure communication, in which two or more parties exchange confidential messages in the presence of an eavesdropper. In some scenarios, however, the identity of the communicating parties may also be sensitive information. In these situations, it is essential to ensure that the identities remain concealed throughout the protocol. In this talk, I will explore how quantum systems bring advantages to anonymous communication. I will then focus on the task of anonymously establishing a secret key among several users in a quantum network, introducing a security framework that encompasses both secrecy of the key and user anonymity. I will present efficient and noise-tolerant protocols that leverage the correlations of multipartite Greenberger–Horne–Zeilinger (GHZ) states, demonstrating their superiority over protocols based on bipartite entanglement. Finally, I will discuss a recent experiment showcasing that the advantages of multipartite entanglement can already be witnessed with current technology.
en
dc.language.iso
en
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dc.subject
Quantum Cryptography
en
dc.subject
multipartite entanglement
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dc.subject
anonymity
en
dc.title
Anonymous communication in quantum networks
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.contributor.affiliation
TU Wien, Austria
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dc.type.category
Conference Presentation
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tuw.publication.invited
invited
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tuw.researchTopic.id
Q3
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tuw.researchTopic.id
Q6
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tuw.researchTopic.id
Q5
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tuw.researchTopic.name
Quantum Modeling and Simulation
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tuw.researchTopic.name
Quantum Many-body Systems Physics
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tuw.researchTopic.name
Design and Engineering of Quantum Systems
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tuw.researchTopic.value
10
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tuw.researchTopic.value
10
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tuw.researchTopic.value
80
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tuw.publication.orgunit
E141-08 - Forschungsbereich Quantum Optics and Quantum Information
