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

Authors
NIYAZ P SCALETTAR RT FONG CY BATROUNI GG
Citation
P. Niyaz et al., PHASE-TRANSITIONS IN AN INTERACTING BOSON MODEL WITH NEAR-NEIGHBOR REPULSION, Physical review. B, Condensed matter, 50(1), 1994, pp. 362-373
Citations number
38
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
50
Issue
1
Year of publication
1994
Pages
362 - 373
Database
ISI
SICI code
0163-1829(1994)50:1<362:PIAIBM>2.0.ZU;2-9
Abstract
We study the order of the zero temperature quantum phase transitions a t 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 s pin-1/2 XXZ Hamiltonian, is also obtained, and the possibility of a su persolid region is discussed.