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Article: Quantum benchmark for teleportation and storage of squeezed states

TitleQuantum benchmark for teleportation and storage of squeezed states
Authors
Issue Date2008
Citation
Physical Review Letters, 2008, v. 100, n. 17 How to Cite?
AbstractWe provide a quantum benchmark for teleportation and storage of single-mode squeezed states with zero displacement and a completely unknown degree of squeezing along a given direction. For pure squeezed input states, a fidelity higher than 81.5% has to be attained in order to outperform any classical strategy based on an estimation of the unknown squeezing and repreparation of squeezed states. For squeezed thermal input states, we derive an upper and a lower bound on the classical average fidelity which tighten for moderate degree of mixedness. These results enable a critical discussion of recent experiments with squeezed light. © 2008 The American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/212970
ISSN
2015 Impact Factor: 7.645
2015 SCImago Journal Rankings: 3.731
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorAdesso, Gerardo-
dc.contributor.authorChiribella, Giulio-
dc.date.accessioned2015-07-28T04:05:37Z-
dc.date.available2015-07-28T04:05:37Z-
dc.date.issued2008-
dc.identifier.citationPhysical Review Letters, 2008, v. 100, n. 17-
dc.identifier.issn0031-9007-
dc.identifier.urihttp://hdl.handle.net/10722/212970-
dc.description.abstractWe provide a quantum benchmark for teleportation and storage of single-mode squeezed states with zero displacement and a completely unknown degree of squeezing along a given direction. For pure squeezed input states, a fidelity higher than 81.5% has to be attained in order to outperform any classical strategy based on an estimation of the unknown squeezing and repreparation of squeezed states. For squeezed thermal input states, we derive an upper and a lower bound on the classical average fidelity which tighten for moderate degree of mixedness. These results enable a critical discussion of recent experiments with squeezed light. © 2008 The American Physical Society.-
dc.languageeng-
dc.relation.ispartofPhysical Review Letters-
dc.titleQuantum benchmark for teleportation and storage of squeezed states-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1103/PhysRevLett.100.170503-
dc.identifier.scopuseid_2-s2.0-43049086700-
dc.identifier.volume100-
dc.identifier.issue17-
dc.identifier.eissn1079-7114-
dc.identifier.isiWOS:000255524300008-

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