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- Publisher Website: 10.1103/PhysRevLett.97.250503
- Scopus: eid_2-s2.0-33845784271
- WOS: WOS:000243414600007
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Article: Quantum information becomes classical when distributed to many users
Title | Quantum information becomes classical when distributed to many users |
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Authors | |
Issue Date | 2006 |
Publisher | American Physical Society. The Journal's web site is located at http://journals.aps.org/prl/ |
Citation | Physical Review Letters, 2006, v. 97 n. 25, article no. 250503 How to Cite? |
Abstract | Any physical transformation that equally distributes quantum information over a large number M of users can be approximated by a classical broadcasting of measurement outcomes. The accuracy of the approximation is at least of the order O(M-1). In particular, quantum cloning of pure and mixed states can be approximated via quantum state estimation. As an example, for optimal qubit cloning with 10 output copies, a single user has an error probability perr0.45 in distinguishing classical from quantum output, a value close to the error probability of the random guess. © 2006 The American Physical Society. |
Persistent Identifier | http://hdl.handle.net/10722/212893 |
ISSN | 2021 Impact Factor: 9.185 2020 SCImago Journal Rankings: 3.688 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Chiribella, Giulio | - |
dc.contributor.author | D'Ariano, Giacomo Mauro | - |
dc.date.accessioned | 2015-07-28T04:05:21Z | - |
dc.date.available | 2015-07-28T04:05:21Z | - |
dc.date.issued | 2006 | - |
dc.identifier.citation | Physical Review Letters, 2006, v. 97 n. 25, article no. 250503 | - |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | http://hdl.handle.net/10722/212893 | - |
dc.description.abstract | Any physical transformation that equally distributes quantum information over a large number M of users can be approximated by a classical broadcasting of measurement outcomes. The accuracy of the approximation is at least of the order O(M-1). In particular, quantum cloning of pure and mixed states can be approximated via quantum state estimation. As an example, for optimal qubit cloning with 10 output copies, a single user has an error probability perr0.45 in distinguishing classical from quantum output, a value close to the error probability of the random guess. © 2006 The American Physical Society. | - |
dc.language | eng | - |
dc.publisher | American Physical Society. The Journal's web site is located at http://journals.aps.org/prl/ | - |
dc.relation.ispartof | Physical Review Letters | - |
dc.title | Quantum information becomes classical when distributed to many users | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1103/PhysRevLett.97.250503 | - |
dc.identifier.scopus | eid_2-s2.0-33845784271 | - |
dc.identifier.volume | 97 | - |
dc.identifier.issue | 25 | - |
dc.identifier.spage | article no. 250503 | - |
dc.identifier.epage | article no. 250503 | - |
dc.identifier.eissn | 1079-7114 | - |
dc.identifier.isi | WOS:000243414600007 | - |
dc.identifier.issnl | 0031-9007 | - |