A degeneracy bound for homogeneous topological order

We introduce a notion of homogeneous topological order, which is obeyed by most, if not all, known examples of topological order including fracton phases on quantum spins (qudits). The notion is a condition on the ground state subspace, rather than on the Hamiltonian, and demands that given a co...

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Bibliographic Details
Main Author: Jeongwan Haah
Format: Article
Language:English
Published: SciPost 2021-01-01
Series:SciPost Physics
Online Access:https://scipost.org/SciPostPhys.10.1.011