Detecting the Cosmological Stochastic Background of Gravitational Waves with FastICA

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Izzo, L.
Capozziello, S.
De Laurentis, M.
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Abstract
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We show that the stochastic background of gravitational waves, produced in the early cosmological epochs, strictly depends on the assumed theory of gravity. In particular, the specific form of the function f(R), where R is the Ricci scalar, is related to the evolution and the production mechanism of gravitational waves. Using a neural network algorithm which only requires non-Gaussian nature and independence of the input signals we conclude that, in order to detect a CSB signal, the interferometric sensitivity of detector like VIRGO will be improved.
Comment: 5 pages, 1 figure, to appear in Proceeding of the 3rd Stueckelberg Workshop, July 2008 - Pescara, Italy
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General Relativity and Quantum Cosmology
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