5 citations · 5 across the 2 of their papers we have counts for
2 papers
hep-th2025
On symmetries of gravitational on-shell boundary action at null infinity
Shivam Upadhyay
We revisit the gravitational boundary action at null infinity of asymptotically flat spacetimes. We fix the corner ambiguities in the boundary action by using the constraint that (…
hep-th2024★ 5 cited
Flat limit of AdS/CFT from AdS geodesics: scattering amplitudes and antipodal matching of Liénard-Wiechert fields
Sarthak Duary, Shivam Upadhyay
We revisit the flat limit of AdS/CFT from the point of view of geodesics in AdS. We show that the flat space scattering amplitudes can be constructed from operator insertions where…