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cond-mat.str-el2026
Fundamental limitations of single-particle Green's-function zeroes as probes of many-body topology
Emile Pangburn, Olivier Gingras
We show that topological invariants constructed from single-particle Green's functions (GFs) cannot reliably diagnose the topology of interacting many-body states. Using coupled in…
cond-mat.str-el2026
Correlated Mott semi-metal in the topological heavy fermion model
Emile Pangburn, Igor de Melo Froldi, Anurag Banerjee
The topological heavy-fermion model provides a minimal framework for describing the coexistence of localized moments and itinerant Dirac electrons in magic-angle twisted bilayer gr…