Celestial Sphere: holography, CFT and amplitudes (Higgs Centre Workshop)

Sep 13, 2021, 9:15 AM → Sep 15, 2021, 5:00 PM Europe/London

Privacy notice Celestial Sphere - holography, CFT and amplitudes.docx

Mon, September 13

9:15 AM → 9:30 AM Welcome

9:30 AM → 10:30 AM Laura Donnay (TU Vienna) - BMS flux algebra in celestial holography

Talk recording

10:30 AM → 11:00 AM Refreshment Break

11:00 AM → 12:00 PM Stephan Stieberger (MPI Munich) - Celestial Gluon Amplitudes: Single-valued Correlators and Conformal Blocks

Talk recording

12:00 PM → 1:30 PM Lunch Break

1:30 PM → 2:30 PM Lionel Mason (Oxford) - On the twistor origin of celestial W-infinity symmetry

Speaker: Lionel Mason (Oxford University)

Lionel Mason slides.pdf

Talk recording

2:30 PM → 3:00 PM Refreshment Break

3:00 PM → 4:00 PM Andrew Strominger (Harvard) - w infinty and the celestial sphere

Talk recording

4:00 PM → 5:00 PM Ana-Maria Raclariu (Perimeter Institute - Shadow momenta and new constraints on celestial amplitudes

Ana-Maria Raclariu slides.pdf

Talk recording

Tue, September 14

9:30 AM → 10:30 AM Jelle Hartong (Edinburgh) - Carroll: to run or to stand still

Speaker: Dr Jelle Hartong (University of Edinburgh)

Jelle Hartong slides.pdf

Talk recording

10:30 AM → 11:00 AM Refreshment Break

11:00 AM → 12:00 PM Andrea Puhm (Ecole Polytechnique) - From diamonds to pyramids on the celestial sphere

Andrea Puhm slides.pdf

Talk recording

12:00 PM → 1:30 PM Lunch Break

1:30 PM → 2:30 PM Guilherme Pimentel (Leiden) - Invitation to cosmological correlators

Talk recording

2:30 PM → 3:00 PM Refreshment Break

3:00 PM → 4:00 PM Eduardo Casali (UC Davis) - Twistor strings and the Celestial OPE

Talk recording

4:30 PM → 5:30 PM Higgs Centre Colloquium

Andrew Strominger

7:00 PM → 9:00 PM Conference Dinner

Wed, September 15

9:30 AM → 10:30 AM Atul Sharma (Oxford) - Twistors, light transforms, and the celestial Grassmannian

Atul Sharma slides.pdf

Talk recording

10:30 AM → 11:00 AM Refreshment Break

11:00 AM → 12:00 PM Glenn Barnich (ULB) - Photons & gravitons in a Casimir box

Photons & gravitons in a Casimir box

Glenn Barnich slides.pdf

Talk recording

12:00 PM → 1:30 PM Lunch Break

1:30 PM → 2:30 PM Lorenzo Magnea (Torino) - Non-abelian infrared divergences on the celestial sphere

Lorenzo Magnea slides.pdf

Talk recording

2:30 PM → 3:00 PM Refreshment Break

3:00 PM → 4:00 PM Sabrina Pasterski (Princeton) - Fun with Celestial Dressings: Harbingers of Chaos, Heralds of Symmetry

Sabrina Pasterski slides.pdf

Talk recording

4:00 PM → 5:00 PM Akshay Yelleshpur Srikant (Brown) - Celestial MHV amplitudes: polytopes, singularities and differential equations

Akshay Yelleshpur Srikant slides.pdf

Talk recording