Spin-1 Bose-Hubbard model with two- and three-body interactions

被引：2

作者：

Hincapie-F, A. F. ^{[1
]}

Franco, R. ^{[1
]}

Silva-Valencia, J. ^{[1
]}

机构：

[1] Univ Nacl Colombia, Dept Fis, Bogota 5997, Colombia

来源：

PHYSICS LETTERS A | 2018年 / 382卷 / 26期

关键词：

Bose-Hubbard model; Degenerate gases; Quantum phase transitions; MAGNETISM;

D O I：

10.1016/j.physleta.2018.04.029

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigated the ground state of spin-1 bosons interacting under local two- and three-body interactions in one dimension by means of the density matrix renormalization group method. We found that the even-odd asymmetry will be obtained or not depending on the relative values of the two- and three-body interactions. The Mott insulator lobes are spin isotropic, the first showing a dimerized pattern and the second being composed of singlets. The three-body interactions disfavor a longitudinal polar superfluid and a quantum phase transition to a transverse polar superfluid occurs, which could be continuous or discontinuous. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：1760 / 1765

页数：6

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