Weakly trapped surfaces in asymptotically de Sitter spacetimes. (30th May 2018)

• Record Type: Journal Article
• Authors: Chruściel, Piotr T; Galloway, Gregory J; Ling, Eric
• Is Part Of: Classical and quantum gravity. Volume 35:Number 13(2018:Jul.)
• Publication Date: 2018-05-30
• Subjects: trapped surfaces -- de Sitter -- conformal; Quantum gravity -- Periodicals; Gravitation -- Periodicals; Relativity (Physics) -- Periodicals; Space and time -- Periodicals; Periodicals; 521.1
• DOI: 10.1088/1361-6382/aac30d
• Languages: English
• ISSNs: 0264-9381

Abstract

Abstract: It is a standard fact that trapped or marginally trapped surfaces are not visible from conformal infinity, under the usual set of conditions on matter fields and the conformal completion, provided that the cosmological constant is non-positive. In this note we show that the situation is more delicate in the presence of a positive cosmological constant: we present examples of visible marginally trapped surfaces, and we provide a set of natural conditions which guarantee non-visibility.