Bose-Hubbard model with local two- and three-body interaction under off-diagonal confinement

被引：1
作者：
Cruz, G. J. [1 ]
Franco, R. [1 ]
Silva-Valencia, J. [1 ]
机构：
[1] Univ Nacl Colombia, Dept Fis, Bogota, Colombia
来源：
21ST LATIN AMERICAN SYMPOSIUM ON SOLID STATE PHYSICS (SLAFES XXI) | 2014年 / 480卷
关键词：
MOTT INSULATOR; TRANSITION; SUPERFLUID;
D O I：
10.1088/1742-6596/480/1/012003
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We calculate the density profiles of a system of bosons with off-diagonal confinement and local interaction between two or three particles, using the density matrix renormalizaction group method. We found different ground-states: Mott insulator, superfluid and diverse mixed states. We observe that the Mott insulator lobes are surrounded by Mott insulator-superfluid coexistence state regardless the kind of the local interaction. The area of the Mott insulator lobes decreases for the two-body interactions and remain the same for three-body interactions.
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页数：4
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