Improved DHOST Genesis

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 cho...

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Autores principales: Mian Zhu, Yunlong Zheng
Formato: article
Lenguaje:EN
Publicado: SpringerOpen 2021
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Acceso en línea:https://doaj.org/article/20a26659b32744c4a266cc280b02e053
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