Month: March 2021

On April 8 we will have a seminar by

Fiona Seibold (ETH)

Title: Integrable deformations of superstrings

Abstract: I will give an overview of some recent developments concerning special types of integrable deformations that go under the name of eta (or Yang-Baxter) deformations. Focusing on eta-deformations of the AdS5xS5 superstring, I will explore the fate of Weyl invariance under these deformations and analyse the worldsheet scattering theory of the deformed models.

Meeting information:
8th of April 14:30 Italian Time
Zoom Meeting https://l.infn.it/stringwebseminar

Slides are available at
https://pandora.infn.it/public/28e194

You can watch the recording at
https://pandora.infn.it/public/e73a36

On March 11 we will have a seminar by

Lorenz Eberhardt (IAS)

Title: Summing over geometries in string theory

Abstract: I discuss the question how string theory achieves a sum over bulk geometries with fixed asymptotic boundary conditions. I analyze this problem with the help of the tensionless string on AdS3xS3xT4 (with one unit of NS-NS flux) that was recently understood to be dual to the symmetric orbifold of T4. I argue that large stringy corrections around a fixed background can be interpreted as different semiclassical geometries, thus making a sum over semi-classical geometries superfluous.

Meeting information:
11th of March 14:30 Italian Time
Zoom Meeting https://l.infn.it/stringwebseminar

Slides are available at
https://pandora.infn.it/public/95b99e

You can watch the recording at
https://pandora.infn.it/public/00cf45