Boundary and defect CFT: Open problems and applications
Matthew Buican, Natan Andrei, Agnese Bissi, John Cardy, Patrick Dorey, Nadav Drukker, Johanna Erdmenger, Daniel Friedan, D. V. Fursaev, Anatoly Konechny, Charlotte Kristjansen, Isao Makabe, Yasashi Nakayama, Andy O’Bannon, Robert Parini, Brandon Robinson, Shinsei Ryu, Cornelius Schmidt-Colinet, Volker Schomerus, Christoph Schweigert, G.M.T. Watts
Abstract
A review of Boundary and defect conformal field theory: open problems and applications, following a workshop held at Chicheley Hall, Buckinghamshire, UK, 7-8 Sept. 2017. We attempt to provide a broad, bird's-eye view of the latest progress in boundary and defect conformal field theory in various sub-fields of theoretical physics, including the renormalization group, integrability, conformal bootstrap, topological field theory, supersymmetry, holographic duality, and more. We also discuss open questions and promising research directions in each of these sub-fields, and combinations thereof.