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The University of Southampton
STAG Research Centre

String Theory seminar - Hadleigh Frost Seminar

Time:
13:00
Date:
23 November 2022
Venue:
Building 2, Room 1083 (Lecture Theatre B)

For more information regarding this seminar, please email David Turton at [email protected] .

Event details

Title: Braid matrices and \alpha' expansions

Abstract: There is a family of representations of the Braid Lie algebra naturally associated to Veneziano-like integrals on $\mathcal{M}_{0,n}$. I present new explicit formulas for these representations, and explain how they are related to a very nice algebraic structure relating functions on the moduli space. Similar matrices arise for genus $g=1$ string integrals. I will explain how the commutators of these matrices control the computation of the $\alpha'$ expansion of string amplitudes.

Speaker information

Hadleigh Frost , Oxford.

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