Two-field disformal transformation and mimetic cosmology
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2018/11/046
Abstract: We extend the disformal transformation to models with two scalar fields and look at its singular limit. Solving the eigentensor equation for the Jacobian of the transformation of the metrics we find the two-field extension… read more here.
Keywords: disformal transformation; two field; cosmology; transformation ... See more keywords
On the KG-constrained general disformal transformation of the Einstein-Hilbert action
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DOI: 10.1142/s0217751x24501252
Abstract: Although with great successes in explaining phenomena and natural behaviour involving the Universe or a part thereof, the General Theory of Relativity is far from a complete theory. Focusing on its extension within the framework… read more here.
Keywords: general disformal; action; einstein hilbert; hilbert action ... See more keywords
Thermodynamics of f(R) Gravity with Disformal Transformation
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DOI: 10.3390/e21020172
Abstract: We study thermodynamics in f(R) gravity with the disformal transformation. The transformation applied to the matter Lagrangian has the form of γμν=A(ϕ,X)gμν+B(ϕ,X)∂μϕ∂νϕ with the assumption of the Minkowski matter metric γμν=ημν, where ϕ is the… read more here.
Keywords: disformal transformation; thermodynamics; thermodynamics gravity; gravity ... See more keywords