Quantum Tricriticality and Phase Transitions in Spin-Orbit Coupled Bose-Einstein Condensates (Articolo in rivista)

Type
Label
  • Quantum Tricriticality and Phase Transitions in Spin-Orbit Coupled Bose-Einstein Condensates (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevLett.108.225301 (literal)
Alternative label
  • Li Yun [ 1,2 ] ; Pitaevskii Lev P. [ 1,2,3 ] ; Stringari Sandro [ 1,2 ] (2012)
    Quantum Tricriticality and Phase Transitions in Spin-Orbit Coupled Bose-Einstein Condensates
    in Physical review letters (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Li Yun [ 1,2 ] ; Pitaevskii Lev P. [ 1,2,3 ] ; Stringari Sandro [ 1,2 ] (literal)
Pagina inizio
  • 225301 (literal)
Pagina fine
  • 225301 (literal)
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  • 108 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 5 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 21 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • [ 1 ] Univ Trent, Dipartimento Fis, I-38123 Povo, Italy [ 2 ] INO CNR BEC Ctr, I-38123 Povo, Italy [ 3 ] Kapitza Inst Phys Problems, Moscow 119334, Russia (literal)
Titolo
  • Quantum Tricriticality and Phase Transitions in Spin-Orbit Coupled Bose-Einstein Condensates (literal)
Abstract
  • We consider a spin-orbit coupled configuration of spin-1/2 interacting bosons with equal Rashba and Dresselhaus couplings. The phase diagram of the system at T = 0 is discussed with special emphasis on the role of the interaction treated in the mean-field approximation. For a critical value of the density and of the Raman coupling we predict the occurrence of a characteristic tricritical point separating the spin mixed, the phase separated, and the zero momentum states of the Bose gas. The corresponding quantum phases are investigated analyzing the momentum distribution, the longitudinal and transverse spin polarization, and the emergence of density fringes. The effect of harmonic trapping as well as the role of the breaking of spin symmetry in the interaction Hamiltonian are also discussed. (literal)
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