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String-Generated Gravity Models

Boulware, David G. and Deser, S. (1985) String-Generated Gravity Models. Physical Review Letters, 55 (24). pp. 2656-2660. ISSN 0031-9007. doi:10.1103/PhysRevLett.55.2656.

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Expansion of supersymmetric string theory suggests that the leading quadratic curvature correction to the Einstein action is the Gauss-Bonnet invariant. We show that this model has both flat and anti-de Sitter space as solutions, but that the cosmological branch is unstable, because the graviton becomes a ghost there: The theory solves its own cosmological problem. The general static spherically symmetric solution is exhibited; it is asymptotically Schwarzschild. The sign of the Gauss-Bonnet coefficient determines whether there is a normal event horizon (for the string-generated sign) or a naked singularity. We discuss the effects of higher-curvature corrections and of an explicit cosmological term on stability.

Item Type:Article
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Deser, S.0000-0001-9285-9434
Additional Information:© 1985 American Physical Society. (Received 17 October 1985) This work was supported in part by the U.S. Department of Energy under Contract No. DE-AC06-81ER40048 and by the National Science Foundation under Grant No. PHY 82-01094. One of us (D.G.B.) thanks the Aspen Center for Theoretical Physics. After our paper was completed, we were informed by J. T. Wheeler that he had independently obtained the asymptotically flat branch of the "Schwarzschild" solution (12a).
Funding AgencyGrant Number
Department of Energy (DOE)DE-AC06-81ER40048
NSFPHY 82-01094
Issue or Number:24
Classification Code:PACS numbers: 12.25.+e, 04.20.Cv, 04.50.+h, 04.65.+e
Record Number:CaltechAUTHORS:20180417-104515362
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:85901
Deposited By: George Porter
Deposited On:17 Apr 2018 23:13
Last Modified:15 Nov 2021 20:33

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