Discovery-HET Seminar: Arthur Lipstein (DESY/University of Hamburg) – University of Copenhagen

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Discovery-HET Seminar: Arthur Lipstein (DESY/University of Hamburg)

Speaker: Arthur Lipstein (DESY/University of Hamburg)

Title: Ambitwistor Strings at Null Infinity and Asymptotic Symmetries 

Abstract: Recently, Strominger and collaborators proposed a new way of understanding soft theorems for gravity amplitudes in terms of BMS symmetry. In this talk, I will describe how these theorems can be proven from the perspective of conformal field theory and extended in various ways using a chiral infinite tension limit of the RNS string known as ambitwistor string theory.