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Conference Paper: Conference key agreement and quantum sharing of classical secrets with noisy GHZ states

TitleConference key agreement and quantum sharing of classical secrets with noisy GHZ states
Authors
Issue Date2005
Citation
IEEE International Symposium on Information Theory - Proceedings, 2005, v. 2005, p. 1607-1611 How to Cite?
AbstractWe propose a wide class of distillation schemes for multi-partite entangled states that are CSS-states. Our proposal provides not only superior efficiency, but also new insights on the connection between CSS-states and bipartite graph states. We then consider the applications of our distillation schemes for two cryptographic tasks - namely, (a) conference key agreement and (b) quantum sharing of classical secrets. In particular, we construct "prepare-and- measure" protocols. Also we study the yield of those protocols and the threshold value of the fidelity above which the protocols can function securely. Surprisingly, our protocols will function securely even when the initial state does not violate the standard Bell-inequalities for GHZ states. Experimental realization involving only bi-partite entanglement is also suggested.
Persistent Identifierhttp://hdl.handle.net/10722/285907
ISSN
2023 SCImago Journal Rankings: 0.696

 

DC FieldValueLanguage
dc.contributor.authorChen, Kai-
dc.contributor.authorLo, Hoi Kwong-
dc.date.accessioned2020-08-18T04:56:57Z-
dc.date.available2020-08-18T04:56:57Z-
dc.date.issued2005-
dc.identifier.citationIEEE International Symposium on Information Theory - Proceedings, 2005, v. 2005, p. 1607-1611-
dc.identifier.issn2157-8095-
dc.identifier.urihttp://hdl.handle.net/10722/285907-
dc.description.abstractWe propose a wide class of distillation schemes for multi-partite entangled states that are CSS-states. Our proposal provides not only superior efficiency, but also new insights on the connection between CSS-states and bipartite graph states. We then consider the applications of our distillation schemes for two cryptographic tasks - namely, (a) conference key agreement and (b) quantum sharing of classical secrets. In particular, we construct "prepare-and- measure" protocols. Also we study the yield of those protocols and the threshold value of the fidelity above which the protocols can function securely. Surprisingly, our protocols will function securely even when the initial state does not violate the standard Bell-inequalities for GHZ states. Experimental realization involving only bi-partite entanglement is also suggested.-
dc.languageeng-
dc.relation.ispartofIEEE International Symposium on Information Theory - Proceedings-
dc.titleConference key agreement and quantum sharing of classical secrets with noisy GHZ states-
dc.typeConference_Paper-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1109/ISIT.2005.1523616-
dc.identifier.scopuseid_2-s2.0-33749446848-
dc.identifier.volume2005-
dc.identifier.spage1607-
dc.identifier.epage1611-
dc.identifier.eissn2157-8117-
dc.identifier.issnl2157-8095-

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