223 citations · 1.4k across the 32 of their papers we have counts for
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Higher spin dynamics in gravity and celestial symmetries
Laurent Freidel, Daniele Pranzetti, Ana-Maria Raclariu
In this paper we extract from a large- expansion of the vacuum Einstein's equations a dynamical system governing the time evolution of an infinity of higher-spin charges. Upon i…
Celestial Holography
Sabrina Pasterski, Monica Pate, Ana-Maria Raclariu
Celestial holography proposes a duality between the gravitational -matrix and correlators in a conformal field theory living on the celestial sphere. In this white pap…
Sub-subleading Soft Graviton Theorem from Asymptotic Einstein's Equations
Laurent Freidel, Daniele Pranzetti, Ana-Maria Raclariu
We identify in Einstein gravity an asymptotic spin- charge aspect whose conservation equation gives rise, after quantization, to the sub-subleading soft theorem. Our treatment r…
Lectures on Celestial Holography
Ana-Maria Raclariu
These notes consist of 3 lectures on celestial holography given at the Pre-Strings school 2021. We start by reviewing how semiclassically, the subleading soft graviton theorem impl…
Conformal Block Expansion in Celestial CFT
Alexander Atanasov, Walker Melton, Ana-Maria Raclariu +1
The 4D 4-point scattering amplitude of massless scalars via a massive exchange is expressed in a basis of conformal primary particle wavefunctions. This celestial amplitude is expa…
Scattering and the Celestial Torus
Alexander Atanasov, Adam Ball, Walker Melton +2
Analytic continuation from Minkowski space to split signature spacetime has proven to be a powerful tool for the study of scattering amplitudes. Here we show that, under th…