Fracton Topological Phases from Strongly Coupled Spin Chains.
Fracton Topological Phases from Strongly Coupled Spin Chains.
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强耦合自旋链的分形拓扑相。
DOI：
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发表时间：
2017
影响因子：
8.6
通讯作者：
L. Balents
中科院分区：
文献类型：
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作者：
G. Halász;T. Hsieh;L. Balents
我们提供了关于分形式拓扑阶段的新观点，这是一类三维拓扑排序的阶段，具有非常规的分数激发，它们要么完全不动，要么仅沿特定的线或平面移动。我们证明，可以通过强烈耦合相互相交的自旋链并通过混凝土示例来构建各种各样的分裂相，并通过混凝土示例解释这种耦合的自旋链结构如何照亮法act子相的通用特性。特别是，我们描述了从每个耦合的自旋链结构到Parton结构的系统翻译，其中Partons与沿线移动的激发相对应。值得注意的是，我们的分形阶段的构建本质上是基于仅涉及两旋相互作用的自旋模型，因此使我们更接近它们的实验实现。
We provide a new perspective on fracton topological phases, a class of three-dimensional topologically ordered phases with unconventional fractionalized excitations that are either completely immobile or only mobile along particular lines or planes. We demonstrate that a wide range of these fracton phases can be constructed by strongly coupling mutually intersecting spin chains and explain via a concrete example how such a coupled-spin-chain construction illuminates the generic properties of a fracton phase. In particular, we describe a systematic translation from each coupled-spin-chain construction into a parton construction where the partons correspond to the excitations that are mobile along lines. Remarkably, our construction of fracton phases is inherently based on spin models involving only two-spin interactions and thus brings us closer to their experimental realization.