Local-channel-induced rise of quantum correlations in continuous-variable systems (Articolo in rivista)

Type
Label
  • Local-channel-induced rise of quantum correlations in continuous-variable systems (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevA.85.022108 (literal)
Alternative label
  • Ciccarello, Francesco; Giovannetti, Vittorio (2012)
    Local-channel-induced rise of quantum correlations in continuous-variable systems
    in Physical review. A
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Ciccarello, Francesco; Giovannetti, Vittorio (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 85 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 6 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 2 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Scuola Normale Superiore di Pisa; Consiglio Nazionale delle Ricerche (CNR)NANO (literal)
Titolo
  • Local-channel-induced rise of quantum correlations in continuous-variable systems (literal)
Abstract
  • It was recently discovered that the quantum correlations of a pair of disentangled qubits, as measured by the quantum discord, can increase solely because of their interaction with a local dissipative bath. Here, we show that a similar phenomenon can occur in continuous-variable bipartite systems. With this aim, we consider a class of two-mode squeezed thermal states and study the behavior of Gaussian quantum discord under various local Markovian nonunitary channels. While these in general cause a monotonic drop of quantum correlations, an initial rise can take place with a thermal-noise channel. (literal)
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