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YouTube

Geometry at Strong Coupling for Amplitudes and Wilson Loops

Harvard CMSA via YouTube

Overview

Watch a theoretical physics seminar where Oxford's Lionel Mason explores the geometric relationships between planar N=4 super-Yang-Mills amplitudes and null polygonal Wilson loops at strong coupling. Delve into the Alday & Maldacena computation method using minimal surface areas in AdS_5 and discover how their Y-system construction provides the underlying twistor space for a hyperKahler structure. Learn how the amplitude's area relates to Kahler scalar and Plebanski equations while examining the kinematic data's cluster variety structure. Explore similar geometric constructions for form factors through topics including background theory, cross ratios, auxiliary complex parameters, twister space, and symmetrical structures in this advanced discussion of quantum field theory and geometric mathematics.

Syllabus

Introduction
Background
Cluster variety
Cross ratios
Auxiliary complex parameter
Y systems
Twister space
Symmetrical structure

Taught by

Harvard CMSA

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