Solitons in two-dimensional Bose-Einstein condensates (Articolo in rivista)

Type
Label
  • Solitons in two-dimensional Bose-Einstein condensates (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Alternative label
  • Tsuchiya, S; Dalfovo, F; Pitaevskii, L (2008)
    Solitons in two-dimensional Bose-Einstein condensates
    in Physical review. A
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Tsuchiya, S; Dalfovo, F; Pitaevskii, L (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 77 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • \"[Tsuchiya, Shunji] Keio Univ, Dept Phys, Kohoku Ku, Yokohama, Kanagawa 2238522, Japan; [Tsuchiya, Shunji] CREST JST, Kawaguchi, Saitama 3320012, Japan; [Tsuchiya, Shunji; Dalfovo, Franco; Pitaevskii, Lev] Univ Trent, CNR, INFM, BEC, I-38100 Trento, Italy; [Tsuchiya, Shunji; Dalfovo, Franco; Pitaevskii, Lev] Univ Trent, Dipartimento Fis, I-38100 Trento, Italy; [Pitaevskii, Lev] Kapitza Inst Phys Problems, Moscow 119334, Russia (literal)
Titolo
  • Solitons in two-dimensional Bose-Einstein condensates (literal)
Abstract
  • The excitations of a two-dimensional (2D) Bose-Einstein condensate in the presence of a soliton are studied by solving the Kadomtsev-Petviashvili equation which is valid when the velocity of the soliton approaches the speed of sound. The excitation spectrum is found to contain states which are localized near the soliton and have a dispersion law similar to the one of the stable branch of transverse oscillations of a 1D gray soliton in a 2D condensate. By using the stabilization method we show that these localized excitations behave as resonant states coupled to the continuum of free excitations of the condensate. (literal)
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