60 citations · 401 across the 19 of their papers we have counts for
4 papers · 1 filter
Non-local Order Parameters and Quantum Entanglement for Fermionic Topological Field Theories
Kansei Inamura, Ryohei Kobayashi, Shinsei Ryu
We study quantized non-local order parameters, constructed by using partial time-reversal and partial reflection, for fermionic topological phases of matter in one spatial dimensio…
Pin TQFT and Grassmann integral
Ryohei Kobayashi
We discuss a recipe to produce a lattice construction of fermionic phases of matter on unoriented manifolds. This is performed by extending the construction of spin TQFT via the Gr…
On gapped boundaries for SPT phases beyond group cohomology
Ryohei Kobayashi, Kantaro Ohmori, Yuji Tachikawa
We discuss a strategy to construct gapped boundaries for a large class of symmetry-protected topological phases (SPT phases) beyond group cohomology. This is done by a generalizati…
Anomaly indicator of rotation symmetry in (3+1)D topological order
Ryohei Kobayashi, Ken Shiozaki
We examine (3+1)D topological ordered phases with rotation symmetry. We show that some rotation symmetric (3+1)D topological orders are anomalous, in the sense that they cann…