Gauge invariant perturbations of scalar-tensor cosmologies: The vacuum case

Journal Article · Fri Dec 15 00:00:00 EST 2006 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.74.123513· OSTI ID:20868183

Carloni, Sante ^[1]; Dunsby, Peter K. S. ^[1]; Rubano, Claudio ^[2]

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1. Department of Mathematics and Applied Mathematics, University of Cape Town, 7701 Rondebosch (South Africa)
2. Dipartimento di Scienze Fisiche e Sezione INFN di Napoli, Universita di Napoli 'Frederico II', Compliesso Universitario di Monte Sant' Angelo, Via Cynthia I-80126 Naples (Italy)

The covariant gauge-invariant perturbation theory of scalar cosmological perturbations is developed for a general scalar-tensor Friedmann-Lemaitre-Robertson-Walker cosmology in a vacuum. The perturbation equations are then solved exactly in the long wavelength limit for a specific coupling, potential, and background. Differences with the minimally coupled case are briefly discussed.

• OSTI ID: 20868183
• Journal Information: Physical Review. D, Particles Fields, Vol. 74, Issue 12; Other Information: DOI: 10.1103/PhysRevD.74.123513; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COSMOLOGY
COUPLING
DISTURBANCES
FIELD EQUATIONS
GAUGE INVARIANCE
GRAVITATION
PERTURBATION THEORY
POTENTIALS
SCALARS
TENSORS
WAVELENGTHS