Mean-field phase diagram for Bose-Hubbard Hamiltonians with random hopping (Articolo in rivista)

Type
Label
  • Mean-field phase diagram for Bose-Hubbard Hamiltonians with random hopping (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1134/S1054660X07040378 (literal)
Alternative label
  • Buonsante, P; Massel, F; Penna, V; Vezzani, A (2007)
    Mean-field phase diagram for Bose-Hubbard Hamiltonians with random hopping
    in Laser physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Buonsante, P; Massel, F; Penna, V; Vezzani, A (literal)
Pagina inizio
  • 538 (literal)
Pagina fine
  • 544 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 17 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Politecn Turin, Dipartimento Fis, I-10129 Turin, Italy; Univ Parma, Dipartimento Fis, I-43100 Parma, Italy; CNR INFM, I-43100 Parma, Italy (literal)
Titolo
  • Mean-field phase diagram for Bose-Hubbard Hamiltonians with random hopping (literal)
Abstract
  • The zero temperature phase diagram for ultracold bosons in a random 1D potential is obtained through a site decoupling mean-field scheme performed over a Bose-Hubbard (BH) Hamiltonian, whose hopping term is considered as a random variable. As for the model with random on-site potential, the presence of disorder leads to the appearance of a Bose glass phase. The different phases-i.e., Mott insulator, superfluid, and Bose glass-are characterized in terms of condensate fraction and superfluid fraction. Furthermore, the boundary of the Mott lobes is related to an off-diagonal Anderson model featuring the same disorder distribution as the original BH Hamiltonian. (literal)
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