Topology Obstructs Nodeless Excitons

arXiv:2609.36248 · cond-mat.mes-hall · Submitted 2026-09-28 · Read on arXiv

cond-mat.mes-hall

Submitted: 2026-09-28

Updated: 2026-09-28

Terminology

• Chern Number — 10× in this paper · explained in 4 episodes
• Berry Curvature — 4× in this paper · explained in 3 episodes
• Degeneracy — 2× in this paper · explained in 3 episodes
• Alignment — 1× in this paper · explained in 1 episode
• Quantization — 1× in this paper · explained in 12 episodes

Sources

• Band Topology and Linking Structure of Nodal Line Semimetals with Z2 Monopole Charges
• Stiefel-Whitney classes and topological phases in band theory
• Stable Wave-Function Zeros Indicate Exciton Topology

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