The Nature of Dark Energy and Constraints on Its Hypothetical Constituents from Force Measurements

This review considers the theoretical approaches to the understanding of dark energy, which comprises approximately 68% of the energy of our Universe and explains the acceleration in its expansion. Following a discussion of the main approach based on Einstein’s equations with the cosmological term,...

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Main Authors: Galina L. Klimchitskaya, Vladimir M. Mostepanenko
Format: Article
Language:English
Published: MDPI AG 2024-03-01
Series:Universe
Subjects:
Online Access:https://www.mdpi.com/2218-1997/10/3/119
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author Galina L. Klimchitskaya
Vladimir M. Mostepanenko
author_facet Galina L. Klimchitskaya
Vladimir M. Mostepanenko
author_sort Galina L. Klimchitskaya
collection DOAJ
description This review considers the theoretical approaches to the understanding of dark energy, which comprises approximately 68% of the energy of our Universe and explains the acceleration in its expansion. Following a discussion of the main approach based on Einstein’s equations with the cosmological term, the explanations of dark energy using the concept of some kind of scalar field are elucidated. These include the concept of a quintessence and modifications of the general theory of relativity by means of the scalar–tensor gravity exploiting the chameleon, symmetron and environment-dependent dilaton fields and corresponding particles. After mentioning several laboratory experiments allowing us to constrain the hypothetical scalar fields modeling the dark energy, special attention is devoted to the possibility of constraining the parameters of chameleon, symmetron and environment-dependent dilaton fields from measuring the Casimir force. It is concluded that the parameters of each of these fields can be significantly strengthened in near future by using the next-generation setups in preparation suitable for measuring the Casimir force at larger separations.
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spelling doaj.art-29577957eec24abf986cc2cc62f4a2da2024-03-27T14:06:38ZengMDPI AGUniverse2218-19972024-03-0110311910.3390/universe10030119The Nature of Dark Energy and Constraints on Its Hypothetical Constituents from Force MeasurementsGalina L. Klimchitskaya0Vladimir M. Mostepanenko1Central Astronomical Observatory at Pulkovo of the Russian Academy of Sciences, 196140 Saint Petersburg, RussiaCentral Astronomical Observatory at Pulkovo of the Russian Academy of Sciences, 196140 Saint Petersburg, RussiaThis review considers the theoretical approaches to the understanding of dark energy, which comprises approximately 68% of the energy of our Universe and explains the acceleration in its expansion. Following a discussion of the main approach based on Einstein’s equations with the cosmological term, the explanations of dark energy using the concept of some kind of scalar field are elucidated. These include the concept of a quintessence and modifications of the general theory of relativity by means of the scalar–tensor gravity exploiting the chameleon, symmetron and environment-dependent dilaton fields and corresponding particles. After mentioning several laboratory experiments allowing us to constrain the hypothetical scalar fields modeling the dark energy, special attention is devoted to the possibility of constraining the parameters of chameleon, symmetron and environment-dependent dilaton fields from measuring the Casimir force. It is concluded that the parameters of each of these fields can be significantly strengthened in near future by using the next-generation setups in preparation suitable for measuring the Casimir force at larger separations.https://www.mdpi.com/2218-1997/10/3/119dark energycosmological constantchameleonsymmetronenvironment-dependent dilatonCasimir force
spellingShingle Galina L. Klimchitskaya
Vladimir M. Mostepanenko
The Nature of Dark Energy and Constraints on Its Hypothetical Constituents from Force Measurements
Universe
dark energy
cosmological constant
chameleon
symmetron
environment-dependent dilaton
Casimir force
title The Nature of Dark Energy and Constraints on Its Hypothetical Constituents from Force Measurements
title_full The Nature of Dark Energy and Constraints on Its Hypothetical Constituents from Force Measurements
title_fullStr The Nature of Dark Energy and Constraints on Its Hypothetical Constituents from Force Measurements
title_full_unstemmed The Nature of Dark Energy and Constraints on Its Hypothetical Constituents from Force Measurements
title_short The Nature of Dark Energy and Constraints on Its Hypothetical Constituents from Force Measurements
title_sort nature of dark energy and constraints on its hypothetical constituents from force measurements
topic dark energy
cosmological constant
chameleon
symmetron
environment-dependent dilaton
Casimir force
url https://www.mdpi.com/2218-1997/10/3/119
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