论文标题
相互作用的锯齿形石墨烯丝带的拓扑纠缠熵
Topological entanglement entropy of interacting disordered zigzag graphene ribbons
论文作者
论文摘要
相互作用的锯齿形石墨烯纳米容器具有分数电荷，是准二维的，并且显示出指数较小的间隙。我们的数值计算表明，这些系统的拓扑纠缠熵具有较小但普遍的价值，而与相互作用和疾病的强度无关。拓扑纠缠熵获得的结果表明，无障碍阶段至关重要，并且在存在障碍的情况下变得不稳定。
Interacting disordered zigzag graphene nanoribbons have fractional charges, are quasi-one-dimensional, and display an exponentially small gap. Our numerical computations showed that the topological entanglement entropy of these systems has a small finite but universal value, independent of the strength of the interaction and the disorder. The result that was obtained for the topological entanglement entropy shows that the disorder-free phase is critical and becomes unstable in the presence of disorder.
