34 citations · 54 across the 9 of their papers we have counts for
10 papers
Gauss Law, Monodromy Defect, Magnetic Lattice Translation, and Lattice Duality
Pengcheng Wei, Yunqin Zheng
In a Hamiltonian lattice gauge theory, the physical Hilbert space is fixed by the Gauss law, by choosing an eigenspace of the Gauss law operator which generates the gauge transform…
Non-invertible Symmetries in Weyl Fermions, and Applications to Fermion-Boundary Scattering Problem
Pengcheng Wei, Yunqin Zheng
We construct a family of non-invertible topological defects in two-dimensional theories of Weyl fermions. The construction relies on the existence of -symmetric conformal bo…
On the Absence of Symmetric Simple Conformal Boundary Conditions
Pengcheng Wei, Yunqin Zheng
Non-trivial 't Hooft anomaly obstructs the existence of a simple symmetric conformal boundary condition in a CFT. Conversely, there is a common piece of lore that trivial 't Hooft…
Haagerup Symmetry in ?
Jan Albert, Yamato Honda, Justin Kaidi +1
We suggest that the chiral theory -- in many senses the simplest VOA -- may have Haagerup symmetry for . Likewise, we suggest that the…
Non-Local Conserved Currents and Continuous Non-Invertible Symmetries
Diego Delmastro, Adar Sharon, Yunqin Zheng
We embark on a systematic study of continuous non-invertible symmetries, focusing on 1+1d CFTs. We describe a generalized version of Noether's theorem, where continuous non-inverti…
Noninvertible Symmetry-Resolved Affleck-Ludwig-Cardy Formula and Entanglement Entropy from the Boundary Tube Algebra
Yichul Choi, Brandon C. Rayhaun, Yunqin Zheng
We derive a refined version of the Affleck-Ludwig-Cardy formula for a 1+1d conformal field theory, which controls the asymptotic density of high energy states on an interval transf…