Sum rules, dipole oscillation and spin polarizability of a spin-orbit coupled quantum gas (Articolo in rivista)

Type
Label
  • Sum rules, dipole oscillation and spin polarizability of a spin-orbit coupled quantum gas (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1209/0295-5075/99/56008 (literal)
Alternative label
  • Li Yun ; Martone Giovanni Italo ; Stringari Sandro (2012)
    Sum rules, dipole oscillation and spin polarizability of a spin-orbit coupled quantum gas
    in Europhysics letters (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Li Yun ; Martone Giovanni Italo ; Stringari Sandro (literal)
Pagina inizio
  • 56008 (literal)
Pagina fine
  • 56008 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 99 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 5 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 5 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Dipartimento di Fisica, Università di Trento and INO-CNR BEC Center - I-38123 Povo, Italy, EU (literal)
Titolo
  • Sum rules, dipole oscillation and spin polarizability of a spin-orbit coupled quantum gas (literal)
Abstract
  • Using a sum rule approach we investigate the dipole oscillation of a spin-orbit coupled Bose-Einstein condensate confined in a harmonic trap. The crucial role played by the spin polarizability of the gas is pointed out. We show that the lowest dipole frequency exhibits a characteristic jump at the transition between the stripe and spin-polarized phase. Near the second-order transition between the spin-polarized and the single minimum phase the lowest frequency is vanishingly small for large condensates, reflecting the divergent behavior of the spin polarizability. We compare our results with recent experimental measurements as well as with the predictions of effective mass approximation. Copyright (c) EPLA, 2012 (literal)
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