Superfluid-Mott insulator transition of spin-1 bosons in an optical lattice

Shunji Tsuchiya, Susumu Kurihara, Takashi Kimura

    Research output: Contribution to journalArticle

    69 Citations (Scopus)

    Abstract

    The spin-1 bosons interacting antiferromagnetically in an optical lattice were investigated to study the superfluid-Mott insulator (SF-MI) transition. The phase boundaries between SF and MI phase were calculated to study the SF-MI transition of spin-0 bosons to the spin-1 case. The zero-temperature phase diagram was obtained by a mean-field approximation, starting from the Bose-Hubbard tight-binding model for spin-1 bosons. The results show that the MI phase is strongly stabilized against the SF phase when the number of atoms per lattice is even.

    Original languageEnglish
    JournalPhysical Review A - Atomic, Molecular, and Optical Physics
    Volume70
    Issue number4
    DOIs
    Publication statusPublished - 2004 Oct

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics
    • Physics and Astronomy(all)

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