The evolution of tensor perturbations in scalar-tensor theories of gravity

Details The evolution of tensor perturbations in scalar-tensor theories of gravity The evolution of tensor perturbations in scalar-tensor theories of gravity

2006-12-21

arxiv.org/abs/gr-qc/0612133v1

Phys.Rev.D75:064012,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

11 pages, 2 figures, submitted to Physical Review D

Scientific paper

10.1103/PhysRevD.75.064012

The evolution equations for tensor perturbations in a generic scalar tensor theory of gravity are presented. Exact solution are given for a specific class of theories and Friedmann-Lema\^{i}tre-Robertson-Walker backgrounds. In these cases it is shown that, although the evolution of tensor models depends on the choice of parameters of the theory, no amplification is possible if the gravitational interaction is attractive.

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