Outputs (4)

Cosmological correlators for Bogoliubov initial states (2024)
Journal Article
Chopping, A. J., Sleight, C., & Taronna, M. (2024). Cosmological correlators for Bogoliubov initial states. Journal of High Energy Physics, 2024, Article 152. https://doi.org/10.1007/jhep09%282024%29152

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 correlators by reformulating them in the familiar language of Witten di... Read More about Cosmological correlators for Bogoliubov initial states.

From celestial correlators to AdS, and back (2023)
Journal Article
Iacobacci, L., Sleight, C., & Taronna, M. (2023). From celestial correlators to AdS, and back. Journal of High Energy Physics, 2023(6), Article 53. https://doi.org/10.1007/jhep06%282023%29053

We present a general relation between celestial correlation functions in d-dimensions and Witten diagrams in (d + 1)-dimensional Euclidean anti-de Sitter (EAdS) space, to all orders in perturbation theory. Contact diagram processes are proportional t... Read More about From celestial correlators to AdS, and back.

From dS to AdS and back (2021)
Journal Article
Sleight, C., & Taronna, M. (2021). From dS to AdS and back. Journal of High Energy Physics, 2021(12), Article 74. https://doi.org/10.1007/jhep12%282021%29074

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 order in perturbation theory. Assuming the Bunch-Davies vacuum at early... Read More about From dS to AdS and back.

On the consistency of (partially-)massless matter couplings in de Sitter space (2021)
Journal Article
Sleight, C., & Taronna, M. (2021). On the consistency of (partially-)massless matter couplings in de Sitter space. Journal of High Energy Physics, 2021(10), Article 156 (2021). https://doi.org/10.1007/jhep10%282021%29156

We study the consistency of the cubic couplings of a (partially-)massless spinning field to two scalars in (d + 1)-dimensional de Sitter space. Gauge invariance of observables with external (partially)-massless spinning fields translates into Ward-Ta... Read More about On the consistency of (partially-)massless matter couplings in de Sitter space.