[math-ias] Reminder: TODAY IAS HET Seminar via Zoom - 2:30 PM - "Superstring Amplitudes in Genus 0 and Double Copy" - Francis Brown, Oxford University

[Lisa Fleischer]

High Energy Theory Seminar -- Monday, May 17, 2021 

"Superstring Amplitudes in Genus 0 and Double Copy" 

Location: via ZOOM -- Time: 2:30 PM 

Francis Brown, Oxford University 

To connect to the HET Seminar via Zoom, please click the following link: 

[ https://theias.zoom.us/j/83432499354?pwd=TkhMZWFJK2E1UzRyeUppU01pZVQwUT09 | https://theias.zoom.us/j/83432499354?pwd=TkhMZWFJK2E1UzRyeUppU01pZVQwUT09 ] 

Abstract: This is joint work with Clément Dupont. Motivated by double-copy (Kawai-Lewellen-Tye) formulae relating open and closed superstring amplitudes at tree-level, I will explain a general double-copy formula for period integrals on algebraic varieties and its relation to single-valued functions. As an application, we deduce a conjecture of Stieberger which states that the passage from open to closed amplitudes in string perturbation theory at genus zero is given by the so-called single-valued map. 
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Lisa Fleischer
School of Natural Sciences
Institute for Advanced Study
1 Einstein Drive
Princeton, NJ 08540 [ mailto:lisa at ias.edu | lisa at ias.edu ] 



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