activity
20082026
most citedAmbitwistor strings in 4-dimensions

171 citations · 1.7k across the 60 of their papers we have counts for

collaborators

62 papers

hep-th2026

Decompactification and the Flat-Space Limit of AdS S Master Correlators

Burkhard Eden, Paul Heslop, Harshal Kulkarni +3

We study the flat-space limit of AdS/CFT holographic correlators while accounting for the simultaneous decompactification of the internal S. We show that this limit is…

hep-th2026

On the amplitude expansion of gluon correlators in

Humberto Gomez, Renann Lipinski Jusinskas, Arthur Lipstein +1

We show that tree-level gluon correlators in admit a natural expansion in terms of flat-space scattering amplitudes at all multiplicities. In particular, every …

hep-th2026

Carrollian ABJM: Fermions and Supersymmetry

Arjun Bagchi, Arthur Lipstein, Saikat Mondal +1

A natural approach for constructing a concrete example of flat space holography is to take the flat space limit of a well-understood example of AdS/CFT, such as the one relating M-…

hep-th2026

Cosmological Correlator Discontinuities from Scattering Amplitudes

Chandramouli Chowdhury, Sadra Jazayeri, Arthur Lipstein +3

Recent theoretical work has revealed that basic observables of quantum field theory in de Sitter space, known as in-in or cosmological correlators, exhibit surprisingly simple math…

hep-th2025

On in-in correlators for spinning theories and their shadow formulation

Chandramouli Chowdhury, Arthur Lipstein, Joe Marshall +1

In-in correlators are the basic observables in cosmology and are traditionally computed using the Schwinger-Keldysh formalism. In this paper we revisit this formalism for photons,…

hep-th2025

de Sitter locality from conformal field theory

Parijat Dey, Zhongjie Huang, Arthur Lipstein

An important insight from the study of AdS/CFT is that bulk locality can be derived from crossing symmetry of the boundary CFT. In this paper, we take the first steps in extending…