Baryogenesis from the amplification of vacuum fluctuations during inflation

Bjorn Garbrecht; Tomislav Prokopec

doi:10.1103/physrevd.78.123501

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arXiv · 0706.2594

Baryogenesis from the amplification of vacuum fluctuations during inflation

Bjorn Garbrecht·Tomislav Prokopec

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Abstract

We propose that the baryon asymmetry of the Universe may originate from the amplification of quantum fluctuations of a light complex scalar field during inflation. CP-violation is sourced by complex mass terms, which are smaller than the Hubble rate, as well as non-standard kinetic terms. We find that, when assuming 60 e-folds of inflation, an asymmetry in accordance with observation can result for models where the energy scale of inflation is of the order of 10^16 GeV. Lower scales may be achieved when assuming substantially larger amounts of e-folds.

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Bjorn Garbrecht, Tomislav Prokopec. 2007-06-18. Baryogenesis from the amplification of vacuum fluctuations during inflation. https://doi.org/10.1103/physrevd.78.123501

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