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Modified Gravity with ln R Terms and Cosmic Acceleration
Open accessAbstract
The modified gravity with ln R or R−n (ln R)m terms which grow at small curvature is discussed. It is shown that such a model which has a well-defined Newtonian limit may eliminate the need for dark energy and may provide the current cosmic acceleration. It is demonstrated that R2 terms are important not only for early time inflation but also to avoid the instabilities and the linear growth of the gravitational force. It is very interesting that the condition of no linear growth for gravitational force coincides with the one for scalar mass in the equivalent scalar-tensor theory to be very large. Thus, modified gravity with R2 term seems to be a viable classical theory.
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Citations
Cited by
Sotiriou, T. P., & Faraoni, V. (2010) · Reviews of Modern Physics · doi:10.1103/revmodphys.82.451 · Cited by 4,519
Harko, T., Lobo, F. S. N., Nojiri, S., & Odintsov, S. D. (2011) · Physical Review D · doi:10.1103/physrevd.84.024020 · Cited by 2,772
Self-citationModified gravity theories on a nutshell: Inflation, bounce and late-time evolution
Nojiri, S., Odintsov, S. D., & Oikonomou, V. K. (2017) · Physics Reports · doi:10.1016/j.physrep.2017.06.001 · Cited by 2,734
Self-citationIn the realm of the Hubble tension—a review of solutions *
Di Valentino, E., Mena, O., Pan, S., Visinelli, L., Yang, W., Melchiorri, A., Mota, D. F., Riess, A. G., & Silk, J. (2021) · Classical and Quantum Gravity · doi:10.1088/1361-6382/ac086d · Cited by 2,065
Beyond the cosmological standard model
Joyce, A., Jain, B., Khoury, J., & Trodden, M. (2015) · Physics Reports · doi:10.1016/j.physrep.2014.12.002 · Cited by 1,231
Metadata
- Authors
- Nojiri, S., & Odintsov, S. D.
- Venue
- General Relativity and Gravitation
- Published
- 2004-08
- Volume
- 36
- Issue
- 8
- Pages
- 1765-1780
- ISSN
- 0001-7701 (ISSN-L)
- 1572-9532
- OpenAlex
- W2050092510
- Cited by
- 440
- References
- 0
- FWCI
- 18.12
- Type
- journal article
- Language
- en
- Open access
- green
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- Nojiri, S., & Odintsov, S. D. (2004). Modified Gravity with ln R Terms and Cosmic Acceleration. General Relativity and Gravitation. https://doi.org/10.1023/b%3Agerg.0000035950.40718.48
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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