Abstract
AbstractWe study the phenomenology of a class of minimally modified gravity theories called $$f(\mathcal {H})$$
f
(
H
)
theories, in which the usual general relativistic Hamiltonian constraint is replaced by a free function of it. After reviewing the construction of the theory and a consistent matter coupling, we analyze the dynamics of cosmology at the levels of both background and perturbations, and present a concrete example of the theory with a 3-parameter family of the function f. Finally, we compare this example model to Planck data as well as some later-time probes, showing that such a realization of $$f(\mathcal {H})$$
f
(
H
)
theories fits the data significantly better than the standard $$\Lambda $$
Λ
CDM model, in particular by modifying gravity at intermediate redshifts, $$z\simeq 743$$
z
≃
743
.
Publisher
Springer Science and Business Media LLC
Subject
Physics and Astronomy (miscellaneous),Engineering (miscellaneous)
Reference58 articles.
1. A. Kosowsky, M. Milosavljevic, R. Jimenez, Efficient cosmological parameter estimation from microwave background anisotropies. Phys. Rev. D 66, 063007 (2002)
2. R. Durrer, The Cosmic Microwave Background (Cambridge University Press, Cambridge, 2008)
3. L.B. Jose, V. Licia, G.R. Adam, The trouble with $$H_0$$. JCAP, 10:019, (2016)
4. A.G. Riess, S. Casertano, W. Yuan, L.M. Macri, D. Scolnic, Large Magellanic Cloud Cepheid Standards Provide a 1% Foundation for the Determination of the Hubble Constant and Stronger Evidence for Physics beyond $$\Lambda $$CDM. Astrophys. J. 876(1), 85 (2019)
5. C.W. Kenneth et al. H0LiCOW XIII. A 2.4% measurement of $$H_{0}$$ from lensed quasars: $$5.3 $$ tension between early and late-Universe probes. (2019)
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