Non-minimal effective scalar–tensor gravity in the early universe.
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| Title: | Non-minimal effective scalar–tensor gravity in the early universe. |
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| Authors: | Zenin, Oleg1 (AUTHOR), Stamov, Roman2 (AUTHOR) stamov_roma@mail.ru, Kuzmin, Sergey1 (AUTHOR), Alexeyev, Stanislav1,3 (AUTHOR) alexeyevso@my.msu.ru |
| Source: | European Physical Journal C -- Particles & Fields. May2026, Vol. 86 Issue 5, p1-10. 10p. |
| Subjects: | Inflationary universe, Hubble constant, Universe, Physical cosmology |
| Abstract: | We study the consistency of several early-Universe scenarios within a framework of non-minimal effective scalar–tensor gravity. We show that bounce, inflation, and genesis stages are supported within the aforementioned theory. Consequently, this framework can serve as a viable model of the early Universe, where accelerated expansion is driven by the theory's own intrinsic degrees of freedom. Notably, the theory also provides two different values of the Hubble parameter, potentially explaining the different values of the Hubble constant measured from galaxy clusters and relic radiation, respectively. [ABSTRACT FROM AUTHOR] |
| Copyright of European Physical Journal C -- Particles & Fields is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 194633840 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Non-minimal effective scalar–tensor gravity in the early universe. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Zenin%2C+Oleg%22">Zenin, Oleg</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Stamov%2C+Roman%22">Stamov, Roman</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> stamov_roma@mail.ru</i><br /><searchLink fieldCode="AR" term="%22Kuzmin%2C+Sergey%22">Kuzmin, Sergey</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Alexeyev%2C+Stanislav%22">Alexeyev, Stanislav</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<i> alexeyevso@my.msu.ru</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22European+Physical+Journal+C+--+Particles+%26+Fields%22">European Physical Journal C -- Particles & Fields</searchLink>. May2026, Vol. 86 Issue 5, p1-10. 10p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Inflationary+universe%22">Inflationary universe</searchLink><br /><searchLink fieldCode="DE" term="%22Hubble+constant%22">Hubble constant</searchLink><br /><searchLink fieldCode="DE" term="%22Universe%22">Universe</searchLink><br /><searchLink fieldCode="DE" term="%22Physical+cosmology%22">Physical cosmology</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: We study the consistency of several early-Universe scenarios within a framework of non-minimal effective scalar–tensor gravity. We show that bounce, inflation, and genesis stages are supported within the aforementioned theory. Consequently, this framework can serve as a viable model of the early Universe, where accelerated expansion is driven by the theory's own intrinsic degrees of freedom. Notably, the theory also provides two different values of the Hubble parameter, potentially explaining the different values of the Hubble constant measured from galaxy clusters and relic radiation, respectively. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of European Physical Journal C -- Particles & Fields is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1140/epjc/s10052-026-15585-4 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 1 Subjects: – SubjectFull: Inflationary universe Type: general – SubjectFull: Hubble constant Type: general – SubjectFull: Universe Type: general – SubjectFull: Physical cosmology Type: general Titles: – TitleFull: Non-minimal effective scalar–tensor gravity in the early universe. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Zenin, Oleg – PersonEntity: Name: NameFull: Stamov, Roman – PersonEntity: Name: NameFull: Kuzmin, Sergey – PersonEntity: Name: NameFull: Alexeyev, Stanislav IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: May2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 14346044 Numbering: – Type: volume Value: 86 – Type: issue Value: 5 Titles: – TitleFull: European Physical Journal C -- Particles & Fields Type: main |
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