Fractonic Higher-Order Topological Phases in Open Quantum Systems
arXiv:2307.05474 · doi:10.1103/PhysRevB.108.155123
Abstract
In this work, we study the generalization of decohered average symmetry-protected topological phases to open quantum systems with a combination of subsystem symmetries and global symmetries. In particular, we provide examples of two types of intrinsic average higher-order topological phases with average subsystem symmetries. A classification scheme for these phases based on generalized anomaly cancellation criteria of average symmetry is also discussed.
17 pages, 5 figures