Seminar at CPHT

 

Mattia Cesaro (AEI Potsdam) will be visiting us next week, and he will give a seminar. The details are:

 

Time: 11 am to 12 pm, Oct 16th, Thursday 

Location: Salle de Conférence Louis Michel

 

Title: Integrable deformations of dimensionally reduced gravity via auxiliary fields

Abstract: 

Auxiliary field deformations of D=2 field theories, recently introduced by Ferko and Smith in the context of the Principal Chiral Model, are a powerful formalism that allows to deform a known integrable theory, while preserving its integrability properties. In this talk, I will review this formalism and present recent work on how to extend it to other field theories. In particular, I will focus on the dimensional reduction of pure gravity from D=4 to D=2 along two commuting Killing isometries. I will discuss how to obtain, via auxiliary fields, an infinite family of deformations of this model that preserves not only complete integrability, but also the rich algebraic structure underlying the undeformed model. If time allows, I will comment about the possible uplift of the D=2 model thus obtained.