Eddington-Born-Infeld gravity and the large scale structure of the Universe
Open accessAbstract
It has been argued that a Universe governed by Eddington-Born-Infeld gravity can be compatible with current cosmological constraints. The extra fields introduced in this theory can behave as both dark matter and dark energy, unifying the dark sector in one coherent framework. We show the various roles the extra fields can play in the expansion of the Universe and study the evolution of linear perturbations in the various regimes. We find that, as a unified theory of the dark sector, Eddington-Born-Infeld gravity will lead to excessive fluctuations in the cosmic microwave background on large scales. In the presence of a cosmological constant, however, the extra fields can behave as a form of nonparticulate dark matter and can lead to a cosmology which is entirely compatible with current observations of large scale structure. We discuss the interpretation of this form of dark matter and how it can differ from standard, particulate dark matter.
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EBI theory combines the metric tensor plus a connection, and the connection can be replaced by a corresponding metric, expressing the theory as bimetric gravity with cosmological features that can account for dark matter and dark energy.
“It was shown in Bañados et al. (2009b) that the connection can be replaced by a corresponding metric and thus expressing the theory as a bimetric gravity with interesting cosmological features that can account for dark matter and dark energy and thus a possible unifying theory (Bañados et al. 2009a, b; Hu 1998).”
From Testing general relativity in cosmology (2019) · cites this paper as Bañados et al. 2009a, b
Cites
Lewis, A., Challinor, A., & Lasenby, A. (2000) · The Astrophysical Journal · doi:10.1086/309179 · Cited by 4,920 · see citing works
A modification of the Newtonian dynamics as a possible alternative to the hidden mass hypothesis
Milgrom, M. (1983) · The Astrophysical Journal · doi:10.1086/161130 · Cited by 3,316 · see citing works
Dunkley, J., Komatsu, E., Nolta, M. R., Spergel, D. N., Larson, D., Hinshaw, G., Page, L., Bennett, C. L., Gold, B., Jarosik, N., et al. (2009) · The Astrophysical Journal Supplement Series · doi:10.1088/0067-0049/180/2/306 · Cited by 1,787 · see citing works
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Testing general relativity in cosmology
Ishak, M. (2019) · Living Reviews in Relativity · doi:10.1007/s41114-018-0017-4 · Cited by 449 · see citing works
The tensor-vector-scalar theory and its cosmology
Skordis, C. (2009) · Classical and Quantum Gravity · doi:10.1088/0264-9381/26/14/143001 · Cited by 184 · see citing works
Self-citation
- Authors
- Bañados, M., Ferreira, P. G., & Skordis, C.
- Affiliations
- University of Oxford (GB)
- Perimeter Institute (CA)
- Venue
- Physical Review D
- Publisher
- American Physical Society (APS)
- Published
- 2009-03-13
- Volume
- 79
- Issue
- 6
- ISSN
- 0556-2821 (ISSN-L)
- 1550-7998
- 1550-2368
- OpenAlex
- W1992989358
- Cited by
- 76
- References
- 3
- Citations by year
- 2025: 1 · 2024: 1 · 2022: 1 · 2021: 3 · 2020: 3 · 2019: 2 · 2018: 7 · 2017: 8 · 2016: 3 · 2015: 7 · 2014: 6 · 2013: 5 · 2012: 9
- FWCI
- 4.87
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- Americanae (AECID Library) (submittedVersion, other-oa)
- LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, other-oa)
- arXiv (Cornell University)
- Funders
- Science and Technology Facilities Council (ST/F003110/1)
- Topics
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Cosmology and Gravitation Theories
- Physical Sciences › Physics and Astronomy › Statistical and Nonlinear Physics › Noncommutative and Quantum Gravity Theories
- Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Dark Matter and Cosmic Phenomena
- Keywords
- large-scale structure, dark matter, dark energy, unified dark sector, cosmic microwave background anisotropies, linear perturbations, cosmological constant, modified gravity
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