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Sinica-NCTS Seminar on Geometry and Physics
 
10:30 - , April 28, 2017 (Friday)
Room 617, Institute of Mathematics, Academia Sinica
(中研院數學所 617室)
Twisted Representations for N=1 SUSY Theories, including Supergravity
Laurent Baulieu (UPMC-Sorbonne Universités & Max Planck Institute)

Abstract

Building and renormalizing super-Yang-Mills theories is a subtle issue. One must understand the right way of preserving both supersymmetry and gauge invariance, since no regularisation that preserves both supersymmetry and gauge invariance has been found so far. The notion of twisting a supersymmetry algebra is very useful to understand (i) its structure and (ii) the properties of the corresponding quantum field theory. We show how the technique of twisting supersymmetry algebra allows one to explore in details the structure and the renormalisation properties of the N=4 d=4 super-Yang–Mills theory, as well as some interesting properties of supergravity.



 

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