3 papers
math.OA2026
Superselection theory for 2D braided quantum spin systems via Connes fusion
Gregory Faurot, Charlton Li, David Penneys +1
The article arXiv:2410.21454 constructed a braided -tensor category of superselection sectors associated to a net of von Neumann algebras on a suitably geometric pose…
quant-ph2026
Dynamical Lie Algebras Cannot Describe Shallow QAOA: Cragged Terrains, Barren Plateaus, and Empirical Hardness Models
Harrison Copp, Charlton Li, Anžej Margeta-Cacace +1
The dynamical Lie algebraic (DLA) theory of variational quantum algorithms (VQAs) predicts commonplace exponentially vanishing loss and gradient variances for sufficiently deep par…
math.CO2025
A recursion for the twist polynomial of a one-point join of normal binary delta-matroids
Charlton Li
The partial-dual Euler-genus polynomial was defined by Gross, Mansour, and Tucker to analyze how the Euler genus of a ribbon graph changes under partial duality, a generalization o…