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

被引：50

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

页码：362 / 373

页数：12

共 38 条

[1]

[Anonymous], 1986, MONTE CARLO METHODS

[2] CLASSICAL EQUIVALENTS OF ONE-DIMENSIONAL QUANTUM-MECHANICAL SYSTEMS [J].