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cond-mat.mes-hall2026

One-Particle Density Matrix Framework for Mode-Shell Correspondence: Characterizing Topology in Amorphous Higher-Order Topological Insulators

Miguel F. Martínez, Miguel F. Martínez, Lucien Jezequel +3

We present a framework for characterizing higher-order topological phases directly from the one-particle density matrix, without any reference to an underlying Hamiltonian. Our app…