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Initial conditions for slow-roll inflation in a random Gaussian landscape

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 نشر من قبل Masaki Yamada
 تاريخ النشر 2017
  مجال البحث فيزياء
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In the landscape perspective, our Universe begins with a quantum tunneling from an eternally-inflating parent vacuum, followed by a period of slow-roll inflation. We investigate the tunneling process and calculate the probability distribution for the initial conditions and for the number of e-folds of slow-roll inflation, modeling the landscape by a small-field one-dimensional random Gaussian potential. We find that such a landscape is fully consistent with observations, but the probability for future detection of spatial curvature is rather low, $P sim 10^{-3}$.



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