Massive gravitational waves from the R^2 theory of gravity: production and response of interferometers

Details Massive gravitational waves from the R^2 theory of gravity: production and response of interferometers Massive gravitational waves from the R^2 theory of gravity: production and response of interferometers

2007-11-30

arxiv.org/abs/0711.4917v1

Int.J.Mod.Phys.A23:1521-1535,2008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Accepted for the International Journal of Modern Physics A

Scientific paper

10.1142/S0217751X08038603

We show that from the R^{2} high order gravity theory it is possible to produce, in the linearized approch, particles which can be seen like massive modes of gravitational waves (GWs). The presence of the mass generates a longitudinal force in addition of the transverse one which is proper of the massless gravitational waves and the response an interferometer to the effect is computed. This could be, in principle, important to discriminate among the gravity theories. The presence of the mass could also have important applications in cosmology because the fact that gravitational waves can have mass could give a contribution to the dark matter of the Universe.

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