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Higher-order gravity and the cosmological background of gravitational waves

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arxiv 0712.2980 v1 pith:QENSAGI5 submitted 2007-12-18 gr-qc

S. Capozziello , M. De Laurentis , M. Francaviglia This is my paper
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keywords gravitationalwavesbackgroundcosmologicalepsilonhigher-orderactionapproach
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abstract

The cosmological background of gravitational waves can be tuned by the higher-order corrections to the gravitational Lagrangian. In particular, it can be shown that assuming $R^{1+\epsilon}$, where $\epsilon$ indicates a generic (eventually small) correction to the Hilbert-Einstein action in the Ricci scalar $R$, gives a parametric approach to control the evolution and the production mechanism of gravitational waves in the early Universe.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Effective Equation of State Oscillations at Matter-Radiation Equality and Primordial Gravitational Waves

    gr-qc 2025-07 reject novelty 4.0 of 10

    An exponentially deformed R^2 gravity model is claimed to produce total equation-of-state oscillations near z~3400 that enhance the primordial gravitational wave spectrum at LiteBIRD frequencies.

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