The definition of mass in asymptotically de Sitter space-times

Dolan, Brian P. (2019) The definition of mass in asymptotically de Sitter space-times. Classical and Quantum Gravity, 36 (7). (Preprint)

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An invariant definition of mass in asymptotically de-Sitter space-times is given that relies on the existence of a time-like Killing vector on a sphere surrounding the mass but does not require going to an asymptotic region. In particular the mass can be calculated exactly on a sphere inside the cosmological horizon. The formalism requires varying the background metric solution by a perturbation that satisfies the linearized equations of motion but need not share the Killing symmetry of the solution and is therefore ideally suited to calculating masses in stationary space-times perturbed by a gravitational wave without going beyond the cosmological horizon.

Item Type: Article
Uncontrolled Keywords: General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Theory (hep-th)
Divisions: School of Theoretical Physics > Preprints
Date Deposited: 08 Apr 2019 15:15
Last Modified: 15 Dec 2022 02:33

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