Entanglement and extreme spin squeezing for a fluctuating number of indistinguishable particles (Articolo in rivista)

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Label
  • Entanglement and extreme spin squeezing for a fluctuating number of indistinguishable particles (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.86.012337 (literal)
Alternative label
  • Hyllus, Philipp [ 1,2,3 ] ; Pezze Luca [ 4,5 ] ; Smerzi Augusto [ 2,3,4,5 ] ; Toth Geza [ 1,6,7 ] (2012)
    Entanglement and extreme spin squeezing for a fluctuating number of indistinguishable particles
    in Physical review. A
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Hyllus, Philipp [ 1,2,3 ] ; Pezze Luca [ 4,5 ] ; Smerzi Augusto [ 2,3,4,5 ] ; Toth Geza [ 1,6,7 ] (literal)
Pagina inizio
  • 012337 (literal)
Pagina fine
  • 012337 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 86 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 10 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 1 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • [ 1 ] Univ Basque Country UPV EHU, Dept Theoret Phys, E-48080 Bilbao, Spain [ 2 ] INO CNR BEC Ctr, I-38123 Povo, Italy [ 3 ] Univ Trent, Dipartimento Fis, I-38123 Povo, Italy [ 4 ] INO CNR, I-50125 Florence, Italy [ 5 ] LENS, I-50125 Florence, Italy [ 6 ] Basque Fdn Sci, IKERBASQUE, E-48011 Bilbao, Spain [ 7 ] Hungarian Acad Sci, Wigner Res Ctr Phys, H-1525 Budapest, Hungary (literal)
Titolo
  • Entanglement and extreme spin squeezing for a fluctuating number of indistinguishable particles (literal)
Abstract
  • We extend the criteria for k-particle entanglement from the spin-squeezing parameter presented in Sorensen andMolmer [Phys. Rev. Lett. 86, 4431 (2001)] to systems with a fluctuating number of particles. We also discuss how other spin-squeezing inequalities can be generalized to this situation. Further, we show how, by employing additional degrees of freedom, it is possible to extend the bounds to the case when the individual particles cannot be addressed. As a by-product, this allows us to show that in spin-squeezing experiments with cold gases the particles are typically distinguishable in practice. Our results justify the application of the Sorensen-Molmer bounds in recent experiments on spin squeezing in Bose-Einstein condensates. (literal)
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