Phase diagram of spin-1 bosons on one-dimensional lattices

M. Rizzi, D. Rossini, Gabriele De Chiara, S. Montangero, R. Fazio

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85 Citations (Scopus)

Abstract

Spinor Bose condensates loaded in optical lattices have a rich phase diagram characterized by different magnetic order. Here we apply the density matrix renormalization group to accurately determine the phase diagram for spin-1 bosons loaded on a one-dimensional lattice. The Mott lobes present an even or odd asymmetry associated to the boson filling. We show that for odd fillings the insulating phase is always in a dimerized state. The results obtained in this work are also relevant for the determination of the ground state phase diagram of the S=1 Heisenberg model with biquadratic interaction.
Original languageEnglish
JournalPhysical Review Letters
Volume95
Issue number24
DOIs
Publication statusPublished - 09 Dec 2005

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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