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- Publisher Website: 10.1103/PhysRevA.78.012348
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Article: Random-party entanglement distillation in multiparty states
Title | Random-party entanglement distillation in multiparty states |
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Authors | |
Issue Date | 2008 |
Citation | Physical Review A - Atomic, Molecular, and Optical Physics, 2008, v. 78, n. 1, article no. 012348 How to Cite? |
Abstract | We describe various results related to the random-party distillation of multiparty entangled states-that is, conversion of such states into entangled states shared between fewer parties, where those parties are not predetermined. In previous work we showed that certain output states (namely Einstein-Podolsky-Rosen pairs) could be reliably acquired from a prescribed initial multipartite state [namely the W state |W = 1 3 (| 100 + | 010 + | 001 )] via random-party distillation that could not be reliably created between predetermined parties. Here we provide a more rigorous definition of what constitutes "advantageous" random-party distillation. We show that random-party distillation is always advantageous for W-class three-qubit states (but only sometimes for Greenberger-Horne-Zeilinger class states). We show that the general class of multiparty states known as symmetric Dicke states can be readily converted to many other states in the class via random-party distillation. Finally we show that random-party distillation is provably not advantageous in the limit of multiple copies of pure states. © 2008 The American Physical Society. |
Persistent Identifier | http://hdl.handle.net/10722/285920 |
ISSN | 2014 Impact Factor: 2.808 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Fortescue, Ben | - |
dc.contributor.author | Lo, Hoi Kwong | - |
dc.date.accessioned | 2020-08-18T04:56:59Z | - |
dc.date.available | 2020-08-18T04:56:59Z | - |
dc.date.issued | 2008 | - |
dc.identifier.citation | Physical Review A - Atomic, Molecular, and Optical Physics, 2008, v. 78, n. 1, article no. 012348 | - |
dc.identifier.issn | 1050-2947 | - |
dc.identifier.uri | http://hdl.handle.net/10722/285920 | - |
dc.description.abstract | We describe various results related to the random-party distillation of multiparty entangled states-that is, conversion of such states into entangled states shared between fewer parties, where those parties are not predetermined. In previous work we showed that certain output states (namely Einstein-Podolsky-Rosen pairs) could be reliably acquired from a prescribed initial multipartite state [namely the W state |W = 1 3 (| 100 + | 010 + | 001 )] via random-party distillation that could not be reliably created between predetermined parties. Here we provide a more rigorous definition of what constitutes "advantageous" random-party distillation. We show that random-party distillation is always advantageous for W-class three-qubit states (but only sometimes for Greenberger-Horne-Zeilinger class states). We show that the general class of multiparty states known as symmetric Dicke states can be readily converted to many other states in the class via random-party distillation. Finally we show that random-party distillation is provably not advantageous in the limit of multiple copies of pure states. © 2008 The American Physical Society. | - |
dc.language | eng | - |
dc.relation.ispartof | Physical Review A - Atomic, Molecular, and Optical Physics | - |
dc.title | Random-party entanglement distillation in multiparty states | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1103/PhysRevA.78.012348 | - |
dc.identifier.scopus | eid_2-s2.0-48349126518 | - |
dc.identifier.volume | 78 | - |
dc.identifier.issue | 1 | - |
dc.identifier.spage | article no. 012348 | - |
dc.identifier.epage | article no. 012348 | - |
dc.identifier.eissn | 1094-1622 | - |
dc.identifier.isi | WOS:000258180300093 | - |
dc.identifier.issnl | 1050-2947 | - |