Generalized Unimodular Gravity and Cosmological Perturbations
Júlio C. Fabris, Alexander Yu. Kamenshchik
gr-qc, astro-ph.CO, hep-th
Submitted: 2026-06-15
Comments: Latex file, 9 pages
License: http://creativecommons.org/licenses/by/4.0/
The gist: The generalized unimodular theory is revisited and its consequence for cosmology is discussed.
Terminology
Abstract
The generalized unimodular theory is revisited and its consequence for cosmology is discussed. The usual matter components of the universe are obtained in a pure geometric way. This result gives a new perspective to the studies of the dark sector of the universe. A background and perturbative analysis are carried out, recovering the corresponding results obtained through the general relativity theory but with a different interpretation.
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