Gluon & graviton scattering in the de Sitter static patch

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• Yasha Neiman (Okinawa)
• Monday 12 June 2023, 13:00-14:00
• CMS, Pav. B, CTC Common Room (B1.19) [Potter Room].

If you have a question about this talk, please contact Dr Dong-Gang Wang.

I report the status of a research program to compute scattering between the past and future horizons of an observer in de Sitter space. I focus on Yang-Mills theory and the self-dual sector of General Relativity, both at tree level. Helicity plays the same key role as in the asymptotically flat S-matrix, in contrast with the more standard de Sitter problem of inflationary correlators. Along the way, I construct a lightcone ansatz for self-dual gravity solutions in the Poincare patch, using Kirill Krasnov’s wondrous chiral formulation of GR.

This talk is part of the Cosmology Lunch series.

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