Coulomb interactions turn a Berry-dipole semimetal into an anisotropic non-Fermi liquid with amplified topological Berry dipole under renormalization-group flow.
Beyond Band Insulators: Topology of Semi-metals and Interacting Phases
2 Pith papers cite this work. Polarity classification is still indexing.
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abstract
The theory of topological insulators and superconductors has mostly focused on non-interacting and gapped systems. This review article discusses topological phases that are either gapless or interacting. We discuss recent progress in identifying gapless systems with stable topological properties (such as novel surface states), using Weyl semimetals as an illustration. We then review recent progress in describing topological phases of interacting gapped systems. We explain how new types of edge states can be stabilized by interactions and symmetry, even though the bulk has only conventional excitations and no topological order of the kind associated with Fractional Quantum Hall states.
fields
cond-mat.str-el 2years
2026 2verdicts
UNVERDICTED 2representative citing papers
In the interacting non-Hermitian SSH model the real-space topological marker remains robust while non-Hermiticity amplifies staggered charge correlations near exceptional points under open boundary conditions.
citing papers explorer
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Topological anisotropic non-Fermi liquid from a Berry-dipole semimetal
Coulomb interactions turn a Berry-dipole semimetal into an anisotropic non-Fermi liquid with amplified topological Berry dipole under renormalization-group flow.
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Enhancement of charge correlations and real-space topological marker on an interacting non-Hermitian Su-Schrieffer-Heeger model
In the interacting non-Hermitian SSH model the real-space topological marker remains robust while non-Hermiticity amplifies staggered charge correlations near exceptional points under open boundary conditions.