Local Operator Algebras of Charged States in Gauge Theory and Gravity

Explore a high-energy theory seminar where Massimo Porrati from New York University discusses the challenges and solutions in defining physical charged operators in gauge theory and quantum gravity. Learn about an innovative approach that employs an automorphism to map local charged operator algebras into non-local physical charged operator algebras while preserving certain local algebra properties. The presentation addresses how this technique uses a formally unitary intertwiner to map the exact BRS operator associated with gauge symmetry into its quadratic part. Discover how this method applies to other dressing techniques in the literature and examine the formal construction of physical states along with potential obstructions. This advanced theoretical physics lecture from the Institute for Advanced Study's High Energy Theory Seminar series delves into fundamental questions about locality and physical states in quantum field theories with gauge symmetries.