3 papers
hep-th2026
Bosonic SPT and invertible phases and its relation to Steenrod's problem
Shota Saito, Yuji Tachikawa, Yi Zhang
Bosonic invertible and symmetry-protected topological (SPT) phases are well-known to be described by ordinary cohomology groups in low dimensions, but `beyond-cohomology' phases ap…
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.…
hep-th2024
Axial Anomalies of Maximally Supersymmetric Tensor Theories
Piljin Yi, Yi Zhang
We revisit anomalies of and maximally supersymmetric tensor theories in . A on-shell tensor multiplet descends to that of the maximal supergravit…