Collective excitations of trapped one-dimensional dipolar quantum gases (Articolo in rivista)

Type
Label
  • Collective excitations of trapped one-dimensional dipolar quantum gases (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevA.77.015601 (literal)
Alternative label
  • Pedri, P; De Palo, S; Orignac, E; Citro, R; Chiofalo, ML (2008)
    Collective excitations of trapped one-dimensional dipolar quantum gases
    in Physical review. A
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Pedri, P; De Palo, S; Orignac, E; Citro, R; Chiofalo, ML (literal)
Pagina inizio
  • 015601-1 (literal)
Pagina fine
  • 015601-4 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://link.aps.org/doi/10.1103/PhysRevA.77.015601 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 77 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 4 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • \"[Pedri, P.] Univ Paris 11, Lab Phys Theor & Models Stat, Orsay, France; [De Palo, S.] Univ Trieste, DEMOCRITOS INFM, CNR, Trieste, Italy; [De Palo, S.] Univ Trieste, Dipartmento Fis Teor, Trieste, Italy; [Orignac, E.] CNRS, Ecole Normale Super, Phys Lab, UMR5672, Lyon, France; [Citro, R.] Univ Salerno, Dipartimento Fis ER Caianiello & CNISM, I-84100 Salerno, Italy; [Chiofalo, M. L.] Univ Pisa, Fac Farm, Dipartmento Matemat, Ist Nazl Fis Nucl, Pisa, Italy; [Chiofalo, M. L.] Inst Poincare, Ctr Emile Borel, Paris, France (literal)
Titolo
  • Collective excitations of trapped one-dimensional dipolar quantum gases (literal)
Abstract
  • We calculate the excitation modes of a one-dimensional (1D) dipolar quantum gas confined in a harmonic trap with frequency omega(0) and predict how the frequency of the breathing n=2 mode characterizes the interaction strength evolving from the Tonks-Girardeau value omega(2)=2 omega(0) to the quasi-ordered, superstrongly interacting value omega(2)=root 5 omega(0). Our predictions are obtained within a hydrodynamic Luttinger-liquid theory after applying the local density approximation to the equation of state for the homogeneous dipolar gas, which are in turn determined from reptation quantum Monte Carlo simulations. They are shown to be in quite accurate agreement with the results of a sum-rule approach. These effects can be observed in current experiments, revealing the Luttinger-liquid nature of 1D dipolar Bose gases. (literal)
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