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Improved DHOST Genesis

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 نشر من قبل Yunlong Zheng
 تاريخ النشر 2021
  مجال البحث فيزياء
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We improve the DHOST Genesis proposed in cite{Ilyas:2020zcb}, such that the near scale invariant scalar power spectrum can be generated from the model itself, without involking extra mechanism like a string gas. Besides, the superluminality problem of scalar perturbation plagued in cite{Ilyas:2020zcb} can be rescued by choosing proper DHOST action.



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