In a Chern insulator model, excitons bound to topologically protected ring-shaped defect states have lower binding energies and parameter-sensitive wave function ordering compared to trivial defect states.
Excitons and emergent quantum phenomena in stacked 2d semiconductors
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Defect-Bound Excitons in Topological Materials
In a Chern insulator model, excitons bound to topologically protected ring-shaped defect states have lower binding energies and parameter-sensitive wave function ordering compared to trivial defect states.