5 citations · 9 across the 8 of their papers we have counts for
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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…
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,…
Cosmological Dressing Rules
Chandramouli Chowdhury, Arthur Lipstein, Joe Marshall +2
The basic observables in cosmology are known as in-in correlators. Recent calculations have revealed that in-in correlators in four dimensional de Sitter space exhibit hidden simpl…
Light-cone actions and correlators of self-dual theories in AdS
Chandramouli Chowdhury, George Doran, Arthur Lipstein +3
Self-dual Yang-Mills and Einstein gravity in Euclidean AdS are useful toy models because they can be described by simple scalar Lagrangians exhibiting a new manifestation of th…
Loops, Recursions, and Soft Limits for Fermionic Correlators in (A)dS
Chandramouli Chowdhury, Pratyusha Chowdhury, Radu N. Moga +1
Study of correlation functions in AdS/CFT and in-in correlators in de Sitter space often requires the computation of Witten diagrams. Due to the complexity of evaluating radial int…
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…
Supersymmetric Index for Small Black Holes
Chandramouli Chowdhury, Ashoke Sen, P. Shanmugapriya +1
Supersymmetric elementary string states in the compactified heterotic string theory are described by small black holes that have zero area event horizon. In this paper we compute t…
The Subtle Simplicity of Cosmological Correlators
Chandramouli Chowdhury, Arthur Lipstein, Jiajie Mei +2
We investigate cosmological correlators for conformally coupled theory in four-dimensional de Sitter space. These \textit{in-in} correlators differ from scattering amplitudes…