Quantum Phase Transitions for Bosons in One Dimension
凝聚态物理
2009-10-30 v1
摘要
We study the ground state phase diagram and the critical properties of interacting Bosons in one dimension by means of a quantum Monte Carlo technique. The direct experimental realization is a chain of Josephson junctions. For finite-range interactions we find a novel intermediate phase which shows neither solid order nor superfluidity. We determine the location of this phase and study the critical behaviour of the various transitions. For on-site interaction only, we map out the phase diagram as a function of the hopping strength and the chemical potential.
引用
@article{arxiv.cond-mat/9705261,
title = {Quantum Phase Transitions for Bosons in One Dimension},
author = {Reinhard Baltin and Karl-Heinz Wagenblast},
journal= {arXiv preprint arXiv:cond-mat/9705261},
year = {2009}
}
备注
11 pages, revtex, 2 eps-figures