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- Publisher Website: 10.1103/PhysRevLett.100.170503
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Article: Quantum benchmark for teleportation and storage of squeezed states
Title | Quantum benchmark for teleportation and storage of squeezed states |
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Authors | |
Issue Date | 2008 |
Publisher | American Physical Society. The Journal's web site is located at http://journals.aps.org/prl/ |
Citation | Physical Review Letters, 2008, v. 100 n. 17, article no. 170503 How to Cite? |
Abstract | We 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 Identifier | http://hdl.handle.net/10722/212970 |
ISSN | 2023 Impact Factor: 8.1 2023 SCImago Journal Rankings: 3.040 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Adesso, Gerardo | - |
dc.contributor.author | Chiribella, Giulio | - |
dc.date.accessioned | 2015-07-28T04:05:37Z | - |
dc.date.available | 2015-07-28T04:05:37Z | - |
dc.date.issued | 2008 | - |
dc.identifier.citation | Physical Review Letters, 2008, v. 100 n. 17, article no. 170503 | - |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | http://hdl.handle.net/10722/212970 | - |
dc.description.abstract | We 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.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 benchmark for teleportation and storage of squeezed states | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1103/PhysRevLett.100.170503 | - |
dc.identifier.scopus | eid_2-s2.0-43049086700 | - |
dc.identifier.volume | 100 | - |
dc.identifier.issue | 17 | - |
dc.identifier.spage | article no. 170503 | - |
dc.identifier.epage | article no. 170503 | - |
dc.identifier.eissn | 1079-7114 | - |
dc.identifier.isi | WOS:000255524300008 | - |
dc.identifier.issnl | 0031-9007 | - |