Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2009-02-18
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
5 pages, to appear in the Proceedings of the 3rd Stueckelberg Workshop, July 2008, Pescara - Italy
Scientific paper
The cosmological background of gravitational waves can be tuned by Extended
Theories of Gravity. In particular, it can be shown that assuming a generic
function $f(R)$ of the Ricci scalar $R$ gives a parametric approach to control
the evolution and the production mechanism of gravitational waves in the early
Universe.
Capozziello Salvatore
Izzo Luca
Laurentis Mariafelicia de
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