Birdtracks 2024




drawing: birdtrack diagrams and "real" birdtracks at a beach

The birdtracks method allows for a concise and transparent way of calculating with tensors, with applications that reach across QCD, general relativity, differential geometry, lattice field theory, and representation theory. The aim of this meeting is to bring together experts from different fields, who will explain in which context they use birdtracks, why they use them, and what the special features, advantages, and disadvantages are in their particular context. In this way, the meeting will allow exchange, progress, and synergy across different fields of research.

Confirmed speakers include: Predrag Cvitanović (Georgia Institute of Technology), Anthony Kennedy (The University of Edinburgh), Rob Pisarski (Brookhaven National Laboratory), Heribert Weigert (University of Cape Town) and Torsten Zache (University of Innsbruck).

The meeting is jointly organized by Stefan Keppeler (Universität Tübingen), Simon Plätzer (Universität Graz and Universität Wien) and Malin Sjödahl (Lund University).


Zoom Meeting ID
Simon Platzer
Useful links
Join via phone
Zoom URL
  • Aleksei Kubarski
  • Andreas Trautner
  • Andrecia Ramnath
  • Anthony Kennedy
  • Bruce Westbury
  • Craig Lawrie
  • Domenico Lippolis
  • Elizabeth Dobson
  • Florian Cougoulic
  • Francesco Fedele
  • Greg Jackson
  • Jae Goode
  • Johan Bijnens
  • Julius Julius
  • Jutho Haegeman
  • Kaiwen Sun
  • Kajal Singh
  • Kristjan Kannike
  • Malin Sjödahl
  • Markus Diehl
  • Niall MacKay
  • Nicholas Cimaszewski
  • Nicole Oberth
  • Paul Kothgasser
  • Predra Cvitanović
  • rob pisarski
  • Sachin Grover
  • Sidney Williams
  • Simon Plätzer
  • Stefan Keppeler
  • Stéphane Peigné
  • Timea Vitos
  • Torsten Zache
  • Yoshimasa Hidaka
  • Yueheng Lan
  • +6
    • 1:00 PM 1:10 PM
      Welcome and introduction 10m
    • 1:10 PM 1:50 PM
      A brief history of doodling 40m
      Speaker: Predrag Cvitanović
    • 1:50 PM 2:00 PM
      Discussion 10m
    • 2:10 PM 2:50 PM
      Physics use cases: (Colour) evolution, ... 40m
      Speaker: Simon Plätzer
    • 2:50 PM 3:00 PM
      Discussion 10m
    • 3:10 PM 3:50 PM
      Parametrizing Wilson Line Correlators 40m
      Speaker: Heribert Weigert
    • 3:50 PM 4:00 PM
      Discussion 10m
    • 4:10 PM 4:30 PM
      Using Schur-Weyl duality and Yamanouchi words to compute SU(n) Wigner coefficients more efficiently 20m
      Speaker: Anthony Kennedy
    • 4:30 PM 4:40 PM
      Discussion 10m
    • 1:00 PM 1:40 PM
      All you need is 6js ... and a little bit of chirality flow 40m
      Speaker: Malin Sjödahl
    • 1:40 PM 1:50 PM
      Discussion 10m
    • 2:00 PM 2:40 PM
      Spinography: everything you wanted to know (and more) about Clifford algebras and Pin 40m
      Speaker: Anthony Kennedy
    • 2:40 PM 2:50 PM
      Discussion 10m
    • 3:00 PM 3:40 PM
      How I Learned to Stop Worrying and Love Birdtrack Projection Operators 40m
      Speaker: Andreas Trautner
    • 3:40 PM 3:50 PM
      Discussion 10m
    • 1:00 PM 1:40 PM
      How bird tracks help to construct a matrix model for the deconfining phase transition 40m
      Speaker: Robert Pisarski
    • 1:40 PM 1:50 PM
      Discussion 10m
    • 2:00 PM 2:40 PM
      Constructing generalized Hamiltonian lattice gauge theories using a graphical calculus 40m
      Speaker: Torsten Zache
    • 2:40 PM 2:50 PM
      Discussion 10m
    • 3:00 PM 4:00 PM
      Birdtacks to the Future 1h

      Discussion session