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Abstract: The super-inflationary phase is predicted by the Loop Quantum Cosmology. Inthis paper we study the creation of gravitational waves during this phase. Weconsider the inverse volume corrections to the equation for the tensor modesand calculate the spectrum of the produced gravitons. The amplitude of theobtained spectrum as well as maximal energy of gravitons strongly depend on theevolution of the Universe after the super-inflation. We show that a furtherstandard inflationary phase is necessary to lower the amount of gravitons belowthe present bound. In case of the lack of the standard inflationary phase, thepresent intensity of gravitons would be extremely large. These considerationsgive us another motivation to introduce the standard phase of inflation.



Autor: Jakub Mielczarek, Marek Szydlowski

Fuente: https://arxiv.org/







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