Complex geodesics in de Sitter space

Complex geodesics in de Sitter space

Abstract The two-point function of a free massive scalar field on a fixed background can be evaluated in the large mass limit by using a semiclassical geodesic approximation. In de Sitter space, however, this poses a puzzle. Certain spacelike separated points are not connected by real geodesics desp...

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Bibliographic Details
Main Authors: Shira Chapman, Damián A. Galante, Eleanor Harris, Sameer U. Sheorey, David Vegh
Format: Article
Language:English
Published: SpringerOpen 2023-03-01
Series:Journal of High Energy Physics
Subjects:
AdS-CFT Correspondence
de Sitter space
Online Access:https://doi.org/10.1007/JHEP03(2023)006

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