221 citations · 2.4k across the 45 of their papers we have counts for
47 papers
Late-time electric screening in dS from EAdS loops
Ernesto Bianchi, Sacha Ployet, Charlotte Sleight +1
We compute the one-loop gauge-field two-point functions analytically in scalar QED on dS for general dimension and scalar mass, using the EAdS reformulation of the in-in fo…
Celestial Mellin Amplitudes II: Spin-1 and Spin-2 Exchange, and Beyond
Sébastien Malherbe, Paolo Pergola, Charlotte Sleight +1
We further develop celestial Mellin amplitudes arXiv:2412.11992 to capture the exchange of particles with spin. For massless external scalar fields, we derive closed-form celestial…
(Non-)Conserved Currents and Cosmological Correlators
Charlotte Sleight, Massimo Taronna
We study the fate of global symmetries at the late-time boundary of de Sitter space. In anti-de Sitter space, bulk gauge symmetries generally correspond to conserved global current…
Cosmological Correlators in Gauge Theory and Gravity from EAdS
Md. Abhishek, Charlotte Sleight, Massimo Taronna
In this work we examine in more detail the map between late-time correlators in de Sitter space and boundary correlators in Euclidean anti-de Sitter space, elaborating on the gener…
Conformal Partial Wave Expansion of Celestial Correlators
Francesca Pacifico, Charlotte Sleight, Massimo Taronna
A novel definition of holographic correlation functions on the celestial sphere of Minkowski space was recently introduced in arXiv:2301.01810 as the extrapolation of bulk time-ord…
Cosmological Correlators for Bogoliubov Initial States
Alistair J. Chopping, Charlotte Sleight, Massimo Taronna
We consider late-time correlators in de Sitter (dS) space for initial states related to the Bunch-Davies vacuum by a Bogoliubov transformation. We propose to study such late-time c…
Celestial Holography Revisited II: Correlators and Källén-Lehmann
Lorenzo Iacobacci, Charlotte Sleight, Massimo Taronna
In this work we continue the investigation of the extrapolate dictionary for celestial holography recently proposed in [2301.01810], at both the perturbative and non-perturbative l…
Celestial Holography Revisited
Charlotte Sleight, Massimo Taronna
We revisit the prescription commonly used to define holographic correlators on the celestial sphere of Minkowski space as an integral transform of flat space scattering amplitudes,…
Snowmass Theory Frontier: Astrophysics and Cosmology
Daniel Green, Joshua T. Ruderman, Benjamin R. Safdi +84
We summarize progress made in theoretical astrophysics and cosmology over the past decade and areas of interest for the coming decade. This Report is prepared as the TF09 "Astrophy…
From Celestial Correlators to AdS, and back
Lorenzo Iacobacci, Charlotte Sleight, Massimo Taronna
We present a general relation between celestial correlation functions in -dimensions and Witten diagrams in -dimensional Euclidean anti-de Sitter (EAdS) space,…
Snowmass White Paper: The Cosmological Bootstrap
Daniel Baumann, Daniel Green, Austin Joyce +4
This white paper summarizes recent progress in the cosmological bootstrap, an approach to the study of the statistics of primordial fluctuations from consistency with unitarity, lo…
From dS to AdS and back
Charlotte Sleight, Massimo Taronna
We describe in more detail the general relation uncovered in our previous work between boundary correlators in de Sitter (dS) and in Euclidean anti-de Sitter (EAdS) space, at any o…
On the consistency of (partially-)massless matter couplings in de Sitter space
Charlotte Sleight, Massimo Taronna
We study the consistency of the cubic couplings of a (partially-)massless spinning field to two scalars in -dimensional de Sitter space. Gauge invariance of obser…
Revisiting Higher-Spin Gyromagnetic Couplings
Raffaele Marotta, Massimo Taronna, Mritunjay Verma
We analyze Bosonic, Heterotic, and Type II string theories compactified on a generic torus having constant moduli. By computing the hamiltonian giving the interaction between massi…
From AdS to dS Exchanges: Spectral Representation, Mellin Amplitudes and Crossing
Charlotte Sleight, Massimo Taronna
We present a simple general relation between tree-level exchanges in AdS and dS. This relation allows to directly import techniques and results for AdS Witten diagrams, both in pos…
A note on higher-order vertices of higher-spin fields in flat and (A)dS space
Euihun Joung, Massimo Taronna
In this work we classify homogeneous solutions to the Noether procedure in (A)dS for an arbitrary number of external legs and in general dimensions. We also give a review of the co…
The Unique Polyakov Blocks
Charlotte Sleight, Massimo Taronna
In this work we present a closed form expression for Polyakov blocks in Mellin space for arbitrary spin and scaling dimensions. We provide a prescription to fix the contact term am…
Bootstrapping Inflationary Correlators in Mellin Space
Charlotte Sleight, Massimo Taronna
We develop a Mellin space approach to boundary correlation functions in anti-de Sitter (AdS) and de Sitter (dS) spaces. Using the Mellin-Barnes representation of correlators in Fou…
Anomalous Dimensions from Crossing Kernels
Charlotte Sleight, Massimo Taronna
In this note we consider the problem of extracting the corrections to CFT data induced by the exchange of a primary operator and its descendents in the crossed channel. We show how…
Spinning Mellin Bootstrap: Conformal Partial Waves, Crossing Kernels and Applications
Charlotte Sleight, Massimo Taronna
We study conformal partial waves (CPWs) in Mellin space with totally symmetric external operators of arbitrary integer spin. The exchanged spin is arbitrary, and includes mixed sym…
Feynman rules for higher-spin gauge fields on AdS
Charlotte Sleight, Massimo Taronna
We determine the Feynman rules for the minimal type A higher-spin gauge theory on AdS at cubic order. In particular, we establish the quantum action at cubic order in de Do…
Spinning AdS Loop Diagrams: Two Point Functions
Simone Giombi, Charlotte Sleight, Massimo Taronna
We develop a systematic approach to evaluating AdS loop amplitudes based on the spectral (or "split") representation of bulk-to-bulk propagators, which re-expresses loop diagrams i…
Higher-Spin Gauge Theories and Bulk Locality
Charlotte Sleight, Massimo Taronna
We present a no-go result on consistent Noether interactions among higher-spin gauge fields on anti-de Sitter space-times. We show that there is a non-local obstruction at the clas…
Spinning Witten Diagrams
Charlotte Sleight, Massimo Taronna
We develop a systematic framework to compute the conformal partial wave expansions (CPWEs) of tree-level four-point Witten diagrams with totally symmetric external fields of arbitr…