Phase diagram of spin-1 bosons on one-dimensional lattices
Other Condensed Matter
2007-05-23 v2 Quantum Physics
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.
Keywords
Cite
@article{arxiv.cond-mat/0506098,
title = {Phase diagram of spin-1 bosons on one-dimensional lattices},
author = {Matteo Rizzi and Davide Rossini and Gabriele De Chiara and Simone Montangero and Rosario Fazio},
journal= {arXiv preprint arXiv:cond-mat/0506098},
year = {2007}
}
Comments
5 pages, 4 figures, published version