281 citations · 2.5k across the 47 of their papers we have counts for
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Anomaly Constraints on Gapped Phases with Discrete Chiral Symmetry
Clay Cordova, Kantaro Ohmori
We prove that in quantum field theories with symmetry, certain anomalies forbid a symmetry-preserving vacuum state with a gapped spectrum. In particular, th…
Decorated Symmetry Defects and Their Time-Reversal Anomalies
Clay Cordova, Kantaro Ohmori, Shu-Heng Shao +1
We discuss an isomorphism between the possible anomalies of -dimensional quantum field theories with unitary global symmetry, and those of -dimensional q…
Anomaly Obstructions to Symmetry Preserving Gapped Phases
Clay Cordova, Kantaro Ohmori
Anomalies are renormalization group invariants that constrain the dynamics of quantum field theories. We show that certain anomalies for discrete global symmetries imply that the u…
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…
SCFTs, Holography, and Topological Strings
Hirotaka Hayashi, Patrick Jefferson, Hee-Cheol Kim +2
We show that the non-gravitational sectors of certain 6d and 5d supergravity theories can be decomposed into superconformal field theories (SCFTs) which are coupled together by pai…