The DOI matches its Crossref record; 25 of the 25 references it cites were found in a registry or an index.
Solar System constraints to generalf(R)gravity
Open accessAbstract
It has been proposed that cosmic acceleration or inflation can be driven by replacing the Einstein-Hilbert action of general relativity with a function $f(R)$ of the Ricci scalar $R$. Such $f(R)$ gravity theories have been shown to be equivalent to scalar-tensor theories of gravity that are incompatible with Solar System tests of general relativity, as long as the scalar field propagates over Solar System scales. Specifically, the parameterized post-Newtonian (PPN) parameter in the equivalent scalar-tensor theory is $\ensuremath{\gamma}=1/2$, which is far outside the range allowed by observations. In response to a flurry of papers that questioned the equivalence of $f(R)$ theory to scalar-tensor theories, it was recently shown explicitly, without resorting to the scalar-tensor equivalence, that the vacuum field equations for $1/R$ gravity around a spherically symmetric mass also yield $\ensuremath{\gamma}=1/2$. Here we generalize this analysis to $f(R)$ gravity and enumerate the conditions that, when satisfied by the function $f(R)$, lead to the prediction that $\ensuremath{\gamma}=1/2$.
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Cites
Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
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Will, C. M. (2018) · doi:10.1017/9781316338612 · Cited by 3,637
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Will, C. M. (1993) · doi:10.1017/cbo9780511564246 · Cited by 3,632
Is cosmic speed-up due to new gravitational physics?
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1/R gravity and scalar-tensor gravity
Chiba, T. (2003) · Physics Letters B · doi:10.1016/j.physletb.2003.09.033 · Cited by 678
Self-citationCosmology of generalized modified gravity models
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Cited by
Sotiriou, T. P., & Faraoni, V. (2010) · Reviews of Modern Physics · doi:10.1103/revmodphys.82.451 · Cited by 4,519
Capozziello, S., & De Laurentis, M. (2011) · Physics Reports · doi:10.1016/j.physrep.2011.09.003 · Cited by 3,321
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
Models off(R)cosmic acceleration that evade solar system tests
Hu, W., & Sawicki, I. (2007) · Physical Review D · doi:10.1103/physrevd.76.064004 · Cited by 1,736
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
- Chiba, T., Smith, T. L., & Erickcek, A. L.
- Venue
- Physical Review D
- Publisher
- American Physical Society (APS)
- Published
- 2007-06-20
- Volume
- 75
- Issue
- 12
- ISSN
- 0556-2821 (ISSN-L)
- 1550-7998
- 1550-2368
- OpenAlex
- W2111044754
- Cited by
- 347
- References
- 25
- FWCI
- 18.92
- Type
- journal article
- Language
- en
- Open access
- green
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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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