中文

具有对称性纠缠器的 2 维对称受保护态的完整分类

数学物理 2026-03-11 v1 math.MP 量子物理

摘要

我们考虑具有有限对称群 GG 的 2 维量子自旋系统的对称受保护拓扑态。已 conjectures such states are classified by the cohomology group H3(G,U(1))H^3(G,U(1)),但该分类的完整性仍是一个开放问题。我们限制 ourselves to symmetry protected topological states that can be prepared from a product state by a symmetric entangler。对于这类状态,我们证明了由 H3(G,U(1))H^3(G,U(1)) 进行的分类是完整的。

关键词

引用

@article{arxiv.2603.09959,
  title  = {A complete classification of 2d symmetry protected states with symmetric entanglers},
  author = {Alex Bols and Wojciech De Roeck and Michiel De Wilde and Bruno de O. Carvalho},
  journal= {arXiv preprint arXiv:2603.09959},
  year   = {2026}
}

备注

33 pages, 5 figures