REENTRANT SUPERFLUID-INSULATOR TRANSITIONS OF RANDOM BOSON HUBBARD MODELS

被引：12
|
作者：
HATANO, N [1 ]
机构：
[1] UNIV TOKYO, DEPT PHYS, BUNKYO KU, TOKYO 113, JAPAN
来源：
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1995年 / 64卷 / 05期
关键词：
BOSON SYSTEM; RANDOM POTENTIAL; SUPERFLUIDITY; INSULATOR; REENTRANT PHASE TRANSITION; PHASE DIAGRAM;
D O I：
10.1143/JPSJ.64.1529
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Superfluid-insulator transitions are studied for the ground stare of the Boson Hubbard model with random potentials. The topology of the phase diagram is discussed. Reentrant transitions between the superfluid phase and the Bose-glass insulator phase are found in an arbitrary number of dimensions. The present results are based on a perturbational scaling argument and a quantum Monte Carlo calculation. The Monte Carlo algorithm is also reported in detail.
引用
收藏
页码：1529 / 1551
页数：23
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