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ID: 429373.0, MPI für Gravitationsphysik / Astrophysical Relativity
An evaluation of the graviton propagator in de sitter space
Authors:Allen, Bruce; Turyn, Michael
Date of Publication (YYYY-MM-DD):1987
Title of Journal:Nuclear Physics B
Volume:292
Start Page:813
End Page:852
Review Status:not specified
Audience:Not Specified
Abstract / Description:The graviton propagator in four-dimensional de Sitter space is found in closed form. The vacuum state is taken to be the de Sitter-invariant “euclidean” or “Gibbons-Hawking” vacuum. The gauge-fixing term used is the standard choice introduced by Christensen and Duff. The propagator is given explicity in this gauge, and is found to be finite for points that are not null-related. The method used is new: mode-sums on the four-sphere are expressed as maximally symmetric bitensors. The result is then given in a completely geometric and coördinate-free form. This same method can easily be used for maximally symmetric spaces of general dimension, including anti-de Sitter space with supersymmetric boundary conditions, and for different choices of gauge.
External Publication Status:published
Document Type:Article
Communicated by:Hermann Nicolai
Affiliations:MPI für Gravitationsphysik/Teilinstitut Hannover
MPI für Gravitationsphysik/Observational Relativity and Cosmology
MPI für Gravitationsphysik/Astrophysical Relativity
External Affiliations:Department of Physics and Astronomy, Tufts University, Melford, MA 02155, USA
Identifiers:ISSN:0550-3213
DOI:10.1016/0550-3213(87)90672-9
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