论文标题
双流体共存在无旋转的费米子链中,配对跳跃
Two-fluid coexistence in a spinless fermions chain with pair hopping
论文作者
论文摘要
我们表明,一个简单的一维无旋式费米子模型与配对跳跃显示了一个相,其中配对费米子的Luttinger液体与未配对费米子的Luttinger液体共存。我们的结果基于广泛的数值密度 - 矩阵ren效率组计算,并由捕获共存区域本质的两流体模型支持。
We show that a simple one-dimensional model of spinless fermions with pair hopping displays a phase in which a Luttinger liquid of paired fermions coexists with a Luttinger liquid of unpaired fermions. Our results are based on extensive numerical density-matrix renormalisation group calculations and are supported by a two-fluid model that captures the essence of the coexistence region.