Stochastic background of relic scalar gravitational waves from scalar-tensor gravity

Details Stochastic background of relic scalar gravitational waves from scalar-tensor gravity Stochastic background of relic scalar gravitational waves from scalar-tensor gravity

2007-07-03

arxiv.org/abs/0707.0368v1

Mod.Phys.Lett.A22:2647-2655,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

7 pages, 1 figure

Scientific paper

10.1142/S021773230702573X

A stochastic background of relic gravitational waves is achieved by the so called adiabatically-amplified zero-point fluctuations process derived from early inflation. In principle, it provides a distinctive spectrum of relic gravitational waves. In the framework of scalar-tensor gravity, we discuss the scalar modes of gravitational waves and the primordial production of this scalar component which is generated beside tensorial one. We discuss also the upper limit for such a relic scalar component with respect to the WMAP constraints.

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