We study the emergence of several magnetic phases in dipolar bosonic gases subject to the 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 nonlocal ordered phases, emerges in the one-dimensional case and is preserved even in the presence of a trapping potential.
M. Dalmonte, M. Di Dio, L. Barbiero, F. Ortolani (2011). Homogeneous and inhomogeneous magnetic phases of constrained dipolar bosons. PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, 83, 155110-1-15510-9 [10.1103/PhysRevB.83.155110].
Homogeneous and inhomogeneous magnetic phases of constrained dipolar bosons
ORTOLANI, FABIO
2011
Abstract
We study the emergence of several magnetic phases in dipolar bosonic gases subject to the 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 nonlocal ordered phases, emerges in the one-dimensional case and is preserved even in the presence of a trapping potential.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
