Homogeneous and inhomogeneous magnetic phases of constrained dipolar bosons

Details Homogeneous and inhomogeneous magnetic phases of constrained dipolar bosons Homogeneous and inhomogeneous magnetic phases of constrained dipolar bosons

2010-09-29

arxiv.org/abs/1009.5931v2

Phys. Rev. B 83, 155110 (2011)

Physics

Condensed Matter

Quantum Gases

v2: 9 pages, 15 figures, extended version, new numerical calculations on the BKT transition, accepted for pubblication in PRB

Scientific paper

10.1103/PhysRevB.83.155110

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.

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