Homogeneous and inhomogeneous magnetic phases of constrained dipolar bosons

Autor: Dalmonte, M., Di Dio, M., Barbiero, L., Ortolani, F.
Rok vydání: 2010
Předmět:
Zdroj: Phys. Rev. B 83, 155110 (2011)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevB.83.155110
Popis: We study the emergence of several magnetic phases in dipolar bosonic gases subject to three-body loss mechanism employing numerical simulations based on the density matrix renormalization group(DMRG) algorithm. After mapping the original Hamiltonian in spin language, we find a strong parallelism between the bosonic theory and the spin-1 Heisenberg model with single ion anisotropy and long-range interactions. A rich phase diagram, including ferromagnetic, antiferromagnetic and non-local ordered phases, emerges in the half-filled one-dimensional case, and is preserved even in presence of a trapping potential.
Comment: v2: 9 pages, 15 figures, extended version, new numerical calculations on the BKT transition, accepted for pubblication in PRB
Databáze: arXiv