Starts 15 Jul 2026 11:00
Ends 15 Jul 2026 12:00
Central European Time
Search
Search in Conferences:
Hecap Seminar by Xiang Zhao - QFT in AdS as a set of ODEs
Hybrid
Leonardo Building - Luigi Stasi Seminar Room and via Zoom
!!Please note unusual time!!
Abstract
Correlation functions of local operators in Quantum Field Theory (QFT) in Anti-de Sitter (AdS) space can be fully characterised by the QFT data: scaling dimensions of boundary operators, boundary Operator Product Expansion (OPE) coefficients, and Boundary Operator Expansion (BOE) coefficients for each bulk operator.
In this talk I will focus on 2D QFTs and present a set of universal first order Ordinary Differential Equations (ODEs) that encode the variation of the QFT data under an infinitesimal change of a bulk relevant coupling. In principle, these ODEs can be used to follow a Renormalisation Group (RG) flow starting from a solvable QFT into a strongly coupled phase and to the flat space limit. I will explain the derivation of the ODEs and show explicit numerical tests in the free scalar theory.
In this talk I will focus on 2D QFTs and present a set of universal first order Ordinary Differential Equations (ODEs) that encode the variation of the QFT data under an infinitesimal change of a bulk relevant coupling. In principle, these ODEs can be used to follow a Renormalisation Group (RG) flow starting from a solvable QFT into a strongly coupled phase and to the flat space limit. I will explain the derivation of the ODEs and show explicit numerical tests in the free scalar theory.