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APS » Journals » Phys. Rev. D » Volume 70 » Issue 8
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Phys. Rev. D 70, 081501(R) (2004) [4 pages]

Negative energy and stability in scalar-tensor gravity

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Valerio Faraoni*
Physics Department, University of Northern British Columbia 3333 University Way, Prince George, B.C., Canada V2N 4Z9
Physics Department, Bishop’s University Lennoxville, Quebec, Canada J1M 1Z7

Received 27 July 2004; published 15 October 2004

Linearized gravitational waves in Brans-Dicke and scalar-tensor theories carry negative energy. A gauge-invariant analysis shows that the background Minkowski space is stable at the classical level with respect to linear scalar and tensor inhomogeneous perturbations.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.70.081501
DOI:
10.1103/PhysRevD.70.081501
PACS:
04.20.Cv, 04.30.–w

*email vfaraoni@unbc.ca

 
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