Attracted to de Sitter II: cosmology of the shift-symmetric Horndeski models
作者： Prado Martín-Moruno , Nelson J. Nunes
DOI: 10.1088/1475-7516/2015/09/056
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摘要: Horndeski models with a de Sitter critical point for any kind of material content may provide mechanism to alleviate the cosmological constant problem. Moreover, they could allow us understand current accelerated expansion universe as result dynamical approach when it is an attractor. We show that this indeed attractor shift- symmetric subfamily these characteristics. study scenario results considering radiation and matter content, conclude their background dynamics compatible latest observational data.
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