Implications of cosmological perturbations of Q in STEGR.
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| Title: | Implications of cosmological perturbations of Q in STEGR. |
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| Authors: | Kolhatkar, Ameya1 (AUTHOR) kolhatkarameya1996@gmail.com, Mishra, Sai Swagat1 (AUTHOR) saiswagat009@gmail.com, Sahoo, P. K.1 (AUTHOR) pksahoo@hyderabad.bits-pilani.ac.in |
| Source: | European Physical Journal C -- Particles & Fields. Jun2025, Vol. 85 Issue 6, p1-7. 7p. |
| Subjects: | Gravitational interactions, Nucleosynthesis, Helium, Gravity |
| Abstract: | In this work, the consequences of adding a Q term to the simplest functional form in f(Q) gravity have been investigated. At the background level, the model describes the cosmological evolution in such a way that the Q term is absent, although it appears at the perturbation level. To study the resultant effect, we constrain the model parameter with Planck 18 results and test the strength of the resulting gravitational interaction for different stages of cosmological evolution. Additionally, we compare our result with the big bang nucleosynthesis (BBN) constraint on the Helium abundance. [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: 186711274 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Implications of cosmological perturbations of Q in STEGR. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Kolhatkar%2C+Ameya%22">Kolhatkar, Ameya</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> kolhatkarameya1996@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Mishra%2C+Sai+Swagat%22">Mishra, Sai Swagat</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> saiswagat009@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Sahoo%2C+P%2E+K%2E%22">Sahoo, P. K.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> pksahoo@hyderabad.bits-pilani.ac.in</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>. Jun2025, Vol. 85 Issue 6, p1-7. 7p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Gravitational+interactions%22">Gravitational interactions</searchLink><br /><searchLink fieldCode="DE" term="%22Nucleosynthesis%22">Nucleosynthesis</searchLink><br /><searchLink fieldCode="DE" term="%22Helium%22">Helium</searchLink><br /><searchLink fieldCode="DE" term="%22Gravity%22">Gravity</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: In this work, the consequences of adding a Q term to the simplest functional form in f(Q) gravity have been investigated. At the background level, the model describes the cosmological evolution in such a way that the Q term is absent, although it appears at the perturbation level. To study the resultant effect, we constrain the model parameter with Planck 18 results and test the strength of the resulting gravitational interaction for different stages of cosmological evolution. Additionally, we compare our result with the big bang nucleosynthesis (BBN) constraint on the Helium abundance. [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.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=186711274 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1140/epjc/s10052-025-14384-7 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 7 StartPage: 1 Subjects: – SubjectFull: Gravitational interactions Type: general – SubjectFull: Nucleosynthesis Type: general – SubjectFull: Helium Type: general – SubjectFull: Gravity Type: general Titles: – TitleFull: Implications of cosmological perturbations of Q in STEGR. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Kolhatkar, Ameya – PersonEntity: Name: NameFull: Mishra, Sai Swagat – PersonEntity: Name: NameFull: Sahoo, P. K. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 14346044 Numbering: – Type: volume Value: 85 – Type: issue Value: 6 Titles: – TitleFull: European Physical Journal C -- Particles & Fields Type: main |
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