The DOI matches its Crossref record; 14 of the 14 references it cites were found in a registry or an index.
Detecting dark energy in orbit: The cosmological chameleon
Open accessAbstract
We show that the chameleon scalar field can drive the current phase of cosmic acceleration for a large class of scalar potentials that are also consistent with local tests of gravity. These provide explicit realizations of a quintessence model where the quintessence scalar field couples directly to baryons and dark matter with gravitational strength. We analyze the cosmological evolution of the chameleon field and show the existence of an attractor solution with the chameleon following the minimum of its effective potential. For a wide range of initial conditions, spanning many orders of magnitude in initial chameleon energy density, the attractor is reached before nucleosynthesis. Surprisingly, the range of allowed initial conditions leading to a successful cosmology is wider than in normal quintessence. We discuss applications to the cyclic model of the universe and show how the chameleon mechanism weakens some of the constraints on cyclic potentials.
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Cites
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Cited by
Beyond the cosmological standard model
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Self-citationCosmology and Fundamental Physics with the Euclid Satellite
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Metadata
- Authors
- Brax, P., van de Bruck, C., Davis, A.-C., Khoury, J., & Weltman, A.
- Venue
- Physical Review D
- Publisher
- American Physical Society (APS)
- Published
- 2004-12-10
- Volume
- 70
- Issue
- 12
- ISSN
- 0556-2821 (ISSN-L)
- 1550-7998
- 1550-2368
- OpenAlex
- W2022049922
- Cited by
- 511
- References
- 14
- FWCI
- 7.68
- Type
- journal article
- Language
- en
- Open access
- green
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- Brax, P., van de Bruck, C., Davis, A.-C., Khoury, J., & Weltman, A. (2004). Detecting dark energy in orbit: The cosmological chameleon. Physical Review D. https://doi.org/10.1103/physrevd.70.123518
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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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