Average Symmetry-Protected Topological Phases

Symmetry-protected topological (SPT) phases are many-body quantum states that are topologically nontrivial as long as the relevant symmetries are unbroken. In this work we show that SPT phases are also well defined for average symmetries, where quenched disorders locally break the symmetries, but re...

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Bibliographic Details
Main Authors: Ruochen Ma, Chong Wang
Format: Article
Language:English
Published: American Physical Society 2023-08-01
Series:Physical Review X
Online Access:http://doi.org/10.1103/PhysRevX.13.031016