3 papers
hep-th2026
Higher Connection in Open String Field Theory
Yichul Choi
We define a 2-form connection in the space of classical solutions of the bosonic open string field theory, using the open string star product and integration. The corresponding hig…
hep-th2026
Generalized Tube Algebras, Symmetry-Resolved Partition Functions, and Twisted Boundary States
Yichul Choi, Brandon C. Rayhaun, Yunqin Zheng
We introduce a class of generalized tube algebras which describe how finite, non-invertible global symmetries of bosonic 1+1d QFTs act on operators which sit at the intersection po…
hep-th2025
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…