PHASE-TRANSITIONS IN AN INTERACTING BOSON MODEL WITH NEAR-NEIGHBOR REPULSION

被引：46
|
作者：
NIYAZ, P
SCALETTAR, RT
FONG, CY
BATROUNI, GG
机构：
[1] LOS ALAMOS NATL LAB,CTR NONLINEAR STUDIES,LOS ALAMOS,NM 87545
[2] UNIV CALIF DAVIS,DEPT PHYS,DAVIS,CA 95616
[3] THINKING MACHINES CORP,CAMBRIDGE,MA 02142
来源：
PHYSICAL REVIEW B | 1994年 / 50卷 / 01期
关键词：
D O I：
10.1103/PhysRevB.50.362
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We study the order of the zero temperature quantum phase transitions at density rho = 1 in the one-dimensional extended boson Hubbard model by examining the order parameter distribution and hysteresis effects. The phase diagram of the model at rho = 1/2, a generalization of the spin-1/2 XXZ Hamiltonian, is also obtained, and the possibility of a supersolid region is discussed.
引用
收藏
页码：362 / 373
页数：12
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