Topical review: Georgios Linardopoulos

Wednesday 22 Mar 2023, 11:00 → 12:30 Europe/Stockholm

Speaker: Georgios Linardopoulos (Wigner Research Centre for Physics)

 

Talk title: String theory methods for defect CFTs

 

Abstract: We propose a program for the systematic study of holographic defect conformal field theories at strong coupling with string theory methods. First, we examine whether the string theory duals of defect CFTs are classically integrable. This amounts to identifying all string boundary conditions on probe branes that preserve the integrability of the underlying Green-Schwarz sigma models. Second, we compute holographic defect correlators with semiclassical strings. After reviewing the computation of three-point functions in strongly coupled N = 4 super Yang-Mills theory and one-point functions in its brane-deformed descendants, we outline the computation of two and higher-point correlation functions in defect CFTs.