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Partial lattice defects in higher order topological insulators
Raquel Queiroz, Ion Cosma Fulga, Nurit Avraham +2
Nonzero weak topological indices are thought to be a necessary condition to bind a single helical mode to lattice dislocations. In this work we show that higher-order topological i…
Disconnected Elementary Band Representations, Fragile Topology, and Wilson Loops as Topological Indices: An Example on the Triangular Lattice
Barry Bradlyn, Zhijun Wang, Jennifer Cano +1
In this work, we examine the topological phases that can arise in triangular lattices with disconnected elementary band representations. We show that, although these phases may be…
Symmetry-Protected Topological Interfaces and Entanglement Sequences
Luiz H. Santos, Jennifer Cano, Michael Mulligan +1
Gapped interfaces (and boundaries) of two-dimensional (2D) Abelian topological phases are shown to support a remarkably rich sequence of 1D symmetry-protected topological (SPT) sta…