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arXiv · 1108.0079

Gravitational wave generation in loop quantum cosmology

Paulo M. Sá·Alfredo B. Henriques
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Abstract

We calculate the full spectrum, as observed today, of the cosmological gravitational waves generated within a model based on loop quantum cosmology. It is assumed that the universe, after the transition to the classical regime, undergoes a period of inflation driven by a scalar field with a chaotic-type potential. Our analysis shows that, for certain conditions, loop quantum effects leave a clear signature on the spectrum, namely, an over-production of low-frequency gravitational waves. One of the aims of our work is to show that loop quantum cosmology models can be tested and that, more generally, pre-inflationary physical processes, contrary to what is usually assumed, leave their imprint in those spectra and can also be tested.

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Paulo M. Sá, Alfredo B. Henriques. 2011-07-30. Gravitational wave generation in loop quantum cosmology. https://doi.org/10.1103/physrevd.85.024034

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