Homogeneous and inhomogeneous magnetic phases of constrained dipolar bosons

被引：34

作者：

Dalmonte, M. ^{[1
,2
,3
,4
]}

Di Dio, M. ^{[1
]}

Barbiero, L. ^{[5
]}

Ortolani, F. ^{[1
,2
]}

机构：

[1] Univ Bologna, Dipartimento Fis, I-40126 Bologna, Italy

[2] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy

[3] Univ Innsbruck, IQOQI, A-6020 Innsbruck, Austria

[4] Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria

[5] Politecn Torino, Dipartimento Fis, I-10129 Turin, Italy

来源：

PHYSICAL REVIEW B | 2011年 / 83卷 / 15期

关键词：

QUANTUM SPIN CHAINS; POLAR-MOLECULES; OPTICAL LATTICE; HALDANE GAP; REGIME; GASES;

D O I：

10.1103/PhysRevB.83.155110

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页数：9

共 38 条

[1] QUANTUM SPIN CHAINS AND THE HALDANE GAP [J].