论文标题
单线对液体的分形
Fractons from a liquid of singlet pairs
论文作者
论文摘要
物质阶段具有各种令人兴奋的现象。在这里，我们考虑了一个在一个维度上相互作用的电子模型，该模型描述了旋转单词对的跳跃并服从电荷和偶极保护定律。该模型包含ANSATZ集成扇区，使我们能够解决基态并计算精确的自旋和单电子激发差距。我们观察到分形行为的标志，包括单电子激发的定位和聚类倾向。我们的结果表明，在Spin-1/2 fermions的简单模型中，偶极矩保护定律的重要作用。
Fracton phases of matter feature a variety of exciting phenomena stemming from the restricted mobility of their quasiparticles. Here we consider a model of interacting electrons in one dimension that describes hopping of spin-singlet pairs and obeys both charge and dipole conservation laws. The model contains Bethe ansatz integrable sectors which allow us to solve the ground state and calculate the exact spin and single-electron excitation gaps. We observe hallmarks of fractonic behavior, including localization of single-electron excitations and propensity to clustering. Our results demonstrate the important role of the dipole moment conservation law in a simple model of spin-1/2 fermions.
