Floating Phase versus Chiral Transition in a 1D Hard-Boson Model
Floating Phase versus Chiral Transition in a 1D Hard-Boson Model
复制标题
DOI：
10.1103/physrevlett.122.017205
复制
发表时间：
2019-01-10
影响因子：
8.6
通讯作者：
Mila, Frederic
中科院分区：
文献类型：
--
作者：
Chepiga, Natalia;Mila, Frederic
我们研究了冷原子实验中提出的硬玻色子模型的周期三电荷密度波和无序相之间的相变性质。建立在一个密度矩阵重整化群算法，充分利用硬玻色子约束，我们研究系统多达9000个网站和计算的相关长度和波矢的无公度短程correlationswith前所未有的准确性。我们提供了强有力的数值证据表明，有一个中间浮动阶段足够远的可积Potts点，而在其附近，我们的数值数据是一致的一个独特的过渡Huse-Fisher手征普适性类。
We investigate the nature of the phase transition between the period-three charge-density wave and the disordered phase of a hard-boson model proposed in the context of cold-atom experiments. Building on a density-matrix renormalization group algorithm that takes full advantage of the hard-boson constraints, we study systems with up to 9000 sites and calculate the correlation length and the wave vector of the incommensurate short-range correlationswith unprecedented accuracy. We provide strong numerical evidence that there is an intermediate floating phase far enough from the integrable Potts point, while in its vicinity, our numerical data are consistent with a unique transition in the Huse-Fisher chiral universality class.