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Article: Optimal design and quantum benchmarks for coherent state amplifiers

TitleOptimal design and quantum benchmarks for coherent state amplifiers
Authors
Issue Date2013
Citation
Physical Review Letters, 2013, v. 110, n. 21 How to Cite?
AbstractWe establish the ultimate quantum limits to the amplification of an unknown coherent state, both in the deterministic and probabilistic case, investigating the realistic scenario where the expected photon number is finite. In addition, we provide the benchmark that experimental realizations have to surpass in order to beat all classical amplification strategies and to demonstrate genuine quantum amplification. Our result guarantees that a successful demonstration is in principle possible for every finite value of the expected photon number. © 2013 American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/213312
ISSN
2015 Impact Factor: 7.645
2015 SCImago Journal Rankings: 3.731
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorChiribella, Giulio-
dc.contributor.authorXie, Jinyu-
dc.date.accessioned2015-07-28T04:06:51Z-
dc.date.available2015-07-28T04:06:51Z-
dc.date.issued2013-
dc.identifier.citationPhysical Review Letters, 2013, v. 110, n. 21-
dc.identifier.issn0031-9007-
dc.identifier.urihttp://hdl.handle.net/10722/213312-
dc.description.abstractWe establish the ultimate quantum limits to the amplification of an unknown coherent state, both in the deterministic and probabilistic case, investigating the realistic scenario where the expected photon number is finite. In addition, we provide the benchmark that experimental realizations have to surpass in order to beat all classical amplification strategies and to demonstrate genuine quantum amplification. Our result guarantees that a successful demonstration is in principle possible for every finite value of the expected photon number. © 2013 American Physical Society.-
dc.languageeng-
dc.relation.ispartofPhysical Review Letters-
dc.titleOptimal design and quantum benchmarks for coherent state amplifiers-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1103/PhysRevLett.110.213602-
dc.identifier.scopuseid_2-s2.0-84878391144-
dc.identifier.volume110-
dc.identifier.issue21-
dc.identifier.eissn1079-7114-
dc.identifier.isiWOS:000319278400007-

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