QFT in AdS instead of LSZ

21.02.2023 14:00 – 15:00

Quantum field theories in AdS generate conformal correlation functions on the boundary, and in the limit where AdS is nearly flat one should be able to extract an S-matrix from such correlators. In this talk I will discuss a particularly simple position-space procedure to do so. In the first half I will state the prescription, motivate it through perturbative examples and discuss some of its subtleties. In the second half, I will move on to non-perturbative establishment of the flat-space limit prescription. With minimal assumptions I will show that the resulting S-matrix element from the flat-space limit obeys a dispersion relation and the non-linear unitarity conditions.

Lieu

Bâtiment: Ecole de Physique

Room 234

entrée libre