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Open AccessArticle

Dynamically Generated Inflationary ΛCDM

Physics Department, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
Frankfurt Institute for Advanced Studies (FIAS), Ruth-Moufang-Strasse 1, 60438 Frankfurt am Main, Germany
Bahamas Advanced Study Institute and Conferences, 4A Ocean Heights, Hill View Circle, Stella Maris, Long Island, Bahamas
Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia, Bulgaria
Author to whom correspondence should be addressed.
Symmetry 2020, 12(3), 481;
Received: 13 February 2020 / Accepted: 12 March 2020 / Published: 20 March 2020
(This article belongs to the Special Issue Selected Papers: 10th Mathematical Physics Meeting)
Our primary objective is to construct a plausible, unified model of inflation, dark energy and dark matter from a fundamental Lagrangian action first principle, wherein all fundamental ingredients are systematically dynamically generated starting from a very simple model of modified gravity interacting with a single scalar field employing the formalism of non-Riemannian spacetime volume-elements. The non-Riemannian volume element in the initial scalar field action leads to a hidden, nonlinear Noether symmetry which produces an energy-momentum tensor identified as the sum of a dynamically generated cosmological constant and dust-like dark matter. The non-Riemannian volume-element in the initial Einstein–Hilbert action upon passage to the physical Einstein-frame creates, dynamically, a second scalar field with a non-trivial inflationary potential and with an additional interaction with the dynamically generated dark matter. The resulting Einstein-frame action describes a fully dynamically generated inflationary model coupled to dark matter. Numerical results for observables such as the scalar power spectral index and the tensor-to-scalar ratio conform to the latest 2018 PLANCK data. View Full-Text
Keywords: inflation; dark energy; dark matter inflation; dark energy; dark matter
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MDPI and ACS Style

Benisty, D.; Guendelman, E.I.; Nissimov, E.; Pacheva, S. Dynamically Generated Inflationary ΛCDM. Symmetry 2020, 12, 481.

AMA Style

Benisty D, Guendelman EI, Nissimov E, Pacheva S. Dynamically Generated Inflationary ΛCDM. Symmetry. 2020; 12(3):481.

Chicago/Turabian Style

Benisty, David; Guendelman, Eduardo I.; Nissimov, Emil; Pacheva, Svetlana. 2020. "Dynamically Generated Inflationary ΛCDM" Symmetry 12, no. 3: 481.

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