bosonic spt phases 1cobordism theory 1cohomology 1dijkgraaf-witten models 1invertible topological phases 1steenrod problem 1
From the 1 of 2 linked papers with an AI index.
2 papers
hep-th2026
Bosonic SPT and invertible phases and its relation to Steenrod's problem
Shota Saito, Yuji Tachikawa, Yi Zhang
The paper systematically studies bosonic invertible and symmetry‑protected topological phases, showing that beyond‑cohomology phenomena first appear as a mod‑3 effect and linking t…
hep-th2025
On anomalies and fermionic unitary operators
Masaki Okada, Shutaro Shimamura, Yuji Tachikawa +1
We point out that fermionic unitary operators which anticommute among themselves appear in various situations in quantum field theories with anomalies in the Hamiltonian formalism.…