Dimensionality of the spatiotemporal entanglement of parametric down-conversion photon pairs (Articolo in rivista)

Type
Label
  • Dimensionality of the spatiotemporal entanglement of parametric down-conversion photon pairs (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.86.053803 (literal)
Alternative label
  • Gatti, A.; Corti, T.; Brambilla, E.; Horoshko, D. B. (2012)
    Dimensionality of the spatiotemporal entanglement of parametric down-conversion photon pairs
    in Physical review. A
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Gatti, A.; Corti, T.; Brambilla, E.; Horoshko, D. B. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 86 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 12 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 5 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Consiglio Nazionale delle Ricerche (CNR); University of Insubria; PRES Universite Lille Nord de France; NASB (literal)
Titolo
  • Dimensionality of the spatiotemporal entanglement of parametric down-conversion photon pairs (literal)
Abstract
  • In this work, the Schmidt number of the two-photon state generated by parametric down-conversion ( PDC) is evaluated in the framework of a fully spatiotemporal model for PDC. A comparison with the results obtained in either purely spatial or purely temporal models shows that the degree of entanglement of the PDC state cannot be trivially reduced to the product of the Schmidt numbers obtained in models with lower dimensionality, unless the detected bandwidth is very narrow. This result is a consequence of the nonfactorability of the state in the spatial and temporal degrees of freedoms of twin photons. In the limit of a broad pump beam, we provide a geometrical interpretation of the Schmidt number as the ratio between the volume of the phase-matching region and of a correlation volume. (literal)
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