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The Gravity Lagrangian According to Solar System Experiments
Open accessAbstract
In this work we show that the gravity Lagrangian at relatively low curvatures in both metric and Palatini formalisms is a bounded function that can only depart from the linearity within the limits defined by well-known functions. We obtain those functions by analyzing a set of inequalities that any theory must satisfy in order to be compatible with laboratory and solar system observational constraints. This result implies that the recently suggested f(R)gravity theories with nonlinear terms that dominate at low curvatures are incompatible with observations and, therefore, cannot represent a valid mechanism to justify the cosmic speedup.
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Cited by
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
Construction of cosmologically viable gravity models
De Felice, A., & Tsujikawa, S. (2009) · Physics Letters B · doi:10.1016/j.physletb.2009.03.060 · Cited by 366
Metadata
- Authors
- Olmo, G. J.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2005-12-23
- Volume
- 95
- Issue
- 26
- Pages
- 261102-261102
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2028987217
- Cited by
- 320
- References
- 0
- FWCI
- 11.32
- 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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