Transplanckian inflation as gravity echoes
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Transplanckian inflation as gravity echoes

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Transplanckian inflation as gravity echoes

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Barenboim Szuchman, Gabriela Alejandra Perfil; Vives García, Óscar
Aquest document és un/a article, creat/da en: 2015
In this work, we show that, in the presence of non-minimal coupling to gravity, it is possible to generate sizeable tensor modes in single-field models without transplanckian field values. These transplanckian field values apparently needed in Einstein gravity to accommodate the experimental results may only be due to our insistence of imposing a minimal coupling of the inflaton field to gravity in a model with non-minimal couplings. We present three simple single-field models that prove that it is possible to accommodatea large tensor-to-scalar ratio without requiring transplanckian field values within the slow-roll regime.

    Barenboim Szuchman, Gabriela Alejandra Vives García, Óscar 2015 Transplanckian inflation as gravity echoes Physics Letters B 748 336 342
https://doi.org/10.1016/j.physletb.2015.07.018
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