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

Comments: 10 pages 4, figures

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

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

Related papers

• Magnon Kerr Effect in a Magnetic Thin Film Strongly Coupled to a Microwave Resonator
• Contrasting - and K-Valley Moir'e Physics in Twisted Monolayer/Bilayer WSe 2
• Spectral density of angular momentum transfer from a swift electron to a large spherical nanoparticle
• Why finite-size non-Hermitian eigenvalues can miss asymptotic eigenstates in topological physics
• Intrinsic Floquet Generation and 1/I Quantum Oscillations in a Sliding Charge-Density Wave
• Cascade of topological phase transitions and revival of topological zero modes in imperfect double helical liquids