Recordings & Notes

Recorded talks

A full list of talks is in my CV.

A diagrammatic coaction for FRW power-law cosmological correlators Amplitudes and Algebraic Geometry · Erwin Schrödinger Institute, Vienna, Austria · Mar 2026
Surfaceology for colored Yukawa theory The Mathematics behind Scattering Amplitudes · Galileo Galilei Institute, Florence, Italy · Aug 2024
Duals of Feynman Integrals, I: Differential Equations CAP Virtual Congress · Canadian Association of Physicists · Jun 2021

Notes

Solutions I wrote up as a graduate student, posted in the hope that they help others learning the material. They come with no guarantee of being error-free; if you find a mistake, please let me know. Please do not submit them as your own work.

Peskin & Schroeder, An Introduction to Quantum Field Theory

Selected problems, in varying states of completion.

Chapter 3 Problems 3.1, 3.2, 3.3, 3.4, 3.6, 3.7, 3.8(a)
Chapter 4 Problems 4.1, 4.2, 4.3, 4.4
Chapter 5 Problem 5.1
Chapter 6 Problems 6.2, 6.3
Chapter 7 Problems 7.1, 7.2, 7.3
Chapter 9 Problems 9.1, 9.2
Chapter 10 Problems 10.1, 10.2
Chapter 11 Problem 11.2
Chapter 15 Problems 15.1, 15.2, 15.3

Scattering amplitudes (McGill, 2018)

Course following Elvang & Huang, Scattering Amplitudes in Gauge Theory and Gravity. Handwritten.

Assignment 1 Elvang & Huang 2.1, 2.3, 2.4, 2.8, 2.31, 2.32, 2.34; Srednicki 33.2
Assignment 2 Elvang & Huang 2.14 (along the z-direction), 2.15, 2.21, 2.22, 2.23, 2.26
Assignment 3 Reproduce eqs. 3.7, 3.10, 3.12, 3.19 of 1709.04891
Assignment 4 Elvang & Huang 3.1, 3.2, 3.5, 3.6; Parke–Taylor from a non-adjacent BCFW shift

String theory (McGill reading course, 2017)

Following Polchinski’s lecture notes, Joe’s Little Book of String, with homework problems from his course.