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hep-th2026
Intertwining Defects and Fermion-Boundary Scattering from TQFT
Kantaro Ohmori, Masataka Watanabe, Pengcheng Wei +1
We construct conformal boundary conditions of free Dirac fermions that preserve chiral, anomaly-free symmetries, and determine the associated fermion-boundary scattering, using the…
cond-mat.str-el2026
Symmetry Spans and Enforced Gaplessness
Takamasa Ando, Kantaro Ohmori
Anomaly matching for continuous symmetries has been the primary tool for establishing symmetry enforced gaplessness - the phenomenon where global symmetry alone forces a quantum sy…