Improved DHOST Genesis
Open Access
- 22 November 2021
- journal article
- research article
- Published by Springer Nature in Journal of High Energy Physics
- Vol. 2021 (11) , 1-15
Abstract
We improve the DHOST Genesis proposed in [1], such that the near scale invariant scalar power spectrum can be generated from the model itself, without invoking extra mechanism like a string gas. Besides, the superluminality problem of scalar perturbation plagued in [1] can be rescued by choosing proper DHOST action.Keywords
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