Speaker
Description
It has been known for some years that strings on AdS3 × S3 × T4 can be described by an integrable family of non-linear sigma models with two free parameters: the string tension and the ratio between Ramond-Ramond and Neveu-Schwarz-Neveu-Schwarz fluxes. After fixing a light cone gauge it is possible to describe the worldsheet fluctuations of these strings in terms of particles whose S-matrix can be obtained through the so-called bootstrap approach. This S-matrix is almost entirely fixed through symmetry considerations up to certain scalar functions called dressing factors. These functions are fundamental to understanding the particle content of the theory, comprising both fundamental particles and bound states, and ultimately finding the energy levels of the string through the (Thermodynamic) Bethe Ansatz equations. In this talk I will present recent proposals for the dressing factors of this model, and I will discuss their analytic properties.
