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Article: Perfect discrimination of no-signalling channels via quantum superposition of causal structures

TitlePerfect discrimination of no-signalling channels via quantum superposition of causal structures
Authors
Issue Date2012
Citation
Physical Review A - Atomic, Molecular, and Optical Physics, 2012, v. 86, n. 4 How to Cite?
AbstractA no-signalling channel transforming quantum systems in Alice's and Bob's local laboratories is compatible with two different causal structures: (AB) Alice's output causally precedes Bob's input and (BA) Bob's output causally precedes Alice's input. Here I prove that two no-signalling channels that are not perfectly distinguishable in any ordinary quantum circuit can become perfectly distinguishable through the quantum superposition of circuits with different causal structures. © 2012 American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/213267
ISSN
2014 Impact Factor: 2.808
2015 SCImago Journal Rankings: 1.418
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorChiribella, Giulio-
dc.date.accessioned2015-07-28T04:06:43Z-
dc.date.available2015-07-28T04:06:43Z-
dc.date.issued2012-
dc.identifier.citationPhysical Review A - Atomic, Molecular, and Optical Physics, 2012, v. 86, n. 4-
dc.identifier.issn1050-2947-
dc.identifier.urihttp://hdl.handle.net/10722/213267-
dc.description.abstractA no-signalling channel transforming quantum systems in Alice's and Bob's local laboratories is compatible with two different causal structures: (AB) Alice's output causally precedes Bob's input and (BA) Bob's output causally precedes Alice's input. Here I prove that two no-signalling channels that are not perfectly distinguishable in any ordinary quantum circuit can become perfectly distinguishable through the quantum superposition of circuits with different causal structures. © 2012 American Physical Society.-
dc.languageeng-
dc.relation.ispartofPhysical Review A - Atomic, Molecular, and Optical Physics-
dc.titlePerfect discrimination of no-signalling channels via quantum superposition of causal structures-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1103/PhysRevA.86.040301-
dc.identifier.scopuseid_2-s2.0-84867287312-
dc.identifier.volume86-
dc.identifier.issue4-
dc.identifier.eissn1094-1622-
dc.identifier.isiWOS:000309650800002-

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