2019
DOI: 10.1103/physrevd.100.083521
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Genesis with general relativity asymptotics in beyond Horndeski theory

Abstract: We suggest a novel version of a cosmological Genesis model within beyond Horndeski theory. It combines the initial Genesis behavior of Creminelli et al.

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Cited by 38 publications
(30 citation statements)
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“…Moreover, the perturbations of the Galilean field could propagate superluminally in the original model. Hence, several generalized Galilean Genesis models have been developed in the literature [33][34][35][36][37]. However, in the model of subluminal Galileon Genesis, there will always exist a region of phase space where the perturbations propagate superluminally (with arbitrarily high speed) when one includes any matter which is not directly coupled to the Galileon [38].…”
Section: Jhep01(2021)141mentioning
confidence: 99%
“…Moreover, the perturbations of the Galilean field could propagate superluminally in the original model. Hence, several generalized Galilean Genesis models have been developed in the literature [33][34][35][36][37]. However, in the model of subluminal Galileon Genesis, there will always exist a region of phase space where the perturbations propagate superluminally (with arbitrarily high speed) when one includes any matter which is not directly coupled to the Galileon [38].…”
Section: Jhep01(2021)141mentioning
confidence: 99%
“…It has been shown[20][21][22][23][24] that another way to get around the constraints of refs [18,19]. is to make use of beyond Horndeski[25,26] or DHOST theories[27,28].…”
mentioning
confidence: 99%
“…For small t, keeping the leading term in (99), one finds: diverges exponentially as τ → −∞. Such a behavior is typical for the Genesis scenario [66,67]. The universe starts from the Minkowsky stage with positive acceleration.…”
Section: New Kinetic Theory: Genesismentioning
confidence: 89%
“…Recently, a new type of behavior attracted attention in the cosmological solutions of STs with higher derivatives, such as Galileon [66] and DHOST [67] theories. The univers starts from (or passes through after previous evolution) the Minkowsky space and demonstrates there a sharp violation of NEC, implying that the Hubble parameter satisfies the conditionḢ H 2 .…”
Section: Introductionmentioning
confidence: 99%