5 citations · 5 across the 7 of their papers we have counts for
8 papers · 1 filter
The Cosmological -shift
Carolina Figueiredo, Jiajie Mei, Yuyu Mo +1
We consider the extension of the -shift connecting Tr and pion amplitudes to observables in cosmology. We start in flat-space and explain how one can extract the pion wav…
All-Plus QED Wavefunctions in de Sitter Space
Song He, Jiajie Mei, Yuyu Mo
We present a compact all-multiplicity formula for tree-level late-time wavefunction coefficients of scalar QED in four-dimensional de Sitter space, with a conformally coupled charg…
From Cosmological Cuts to Yang--Mills Wavefunctions in de Sitter Space
Song He, Jiajie Mei, Yuyu Mo
We study tree-level Yang--Mills wavefunctions in four-dimensional de Sitter space using their discontinuities. Cosmological cuts factorize gluon discontinuities into lower-point wa…
Hidden simplicity in AdS spinning Mellin amplitudes via scaffolding
Song He, Xiang Li, Yuyu Mo +1
We uncover surprising hidden simplicity in Mellin amplitudes for tree-level AdS holographic correlators for spinning operators, such as AdS "gluons" and "gravitons" (spin 1 and 2).…
Soft Photon, Gluon and Graviton Theorems in (A)dS from Conformal Invariance
Jiajie Mei, Yuyu Mo
We present new soft theorems for photon, gluon, and graviton correlators at tree level in (Anti)-de Sitter space. The results are derived by applying conformal Ward identities to c…
From on-shell amplitude in AdS to cosmological correlators: gluons and gravitons
Jiajie Mei, Yuyu Mo
We recently introduced a recursive bootstrap method for constructing -point gluon and graviton Mellin-momentum amplitudes in (A)dS spacetime. The power of this approach was illu…
Soft Limits of Gluon and Graviton Correlators in Anti-de Sitter Space
Chandramouli Chowdhury, Arthur Lipstein, Jiajie Mei +1
We derive formulae for the soft limit of tree-level gluon and graviton correlators in Anti-de Sitter space, which arise from Feynman diagrams encoding the Weinberg soft theorems in…
On-shell Bootstrap for n-gluons and gravitons scattering in (A)dS, Unitarity and Soft limit
Jiajie Mei, Yuyu Mo
We propose an algorithm to recursively bootstrap -point gluon and graviton Mellin-Momentum amplitudes in (A)dS spacetime using only three-point amplitude. We discover that gluon…