3 papers
math-ph2026
Free to Interacting Map for Crystalline SPT Phases: Equivariance vs Crystalline Equivalence
Daniel Sheinbaum, Omar Antolín-Camarena
Freed and Hopkins developed an ansatz for classifying interacting SPT phases using invertible field theories with a natural Free to Interacting (FTI) map from free fermion phases.…
cond-mat.str-el2025
Weak in the boundary: How weak SPT phases spoil anomaly matching
Daniel Sheinbaum, Omar Antolín Camarena
We show how weak symmetry protected topological (SPT) phases on systems with a boundary are not in 1-to-1 correspondence with weak SPT phases on fully periodic systems, breaking th…
nlin.PS2020
Solitons in Weakly Non-linear Topological Systems: Linearization, Equivariant Cohomology and K-theory
Daniel Sheinbaum
There is a lack of knowledge about the topological invariants of non-linear -dimensional systems with a periodic potential. We study these systems through a classification of th…