The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.
Coupled and extended quintessence: Theoretical differences and structure formation
Open accessAbstract
The case of a coupling between dark energy and matter [coupled quintessence (CQ)] or gravity [extended quintessence (EQ)] has recently attracted a deep interest and has been widely investigated both in the Einstein and in the Jordan frames (EF, JF), within scalar-tensor theories. Focusing on the simplest models proposed so far, in this paper we study the relation existing between the two scenarios, isolating the Weyl scaling which allows one to express them in the EF and JF. Moreover, we perform a comparative study of the behavior of linear perturbations in both scenarios, which turn out to behave in a markedly different way. In particular, while the clustering is enhanced in the considered CQ models with respect to the corresponding quintessence ones where the coupling is absent and to the ordinary cosmologies with a cosmological constant and cold dark matter ($\ensuremath{\Lambda}\mathrm{CDM}$), structures in EQ models may grow slower. This is likely to have direct consequences on the inner properties of nonlinear structures, like cluster concentration, as well as on the weak lensing shear on large scales. Finally, we specialize our study for interfacing linear dynamics and N-body simulations in these cosmologies, giving a recipe for the corrections to be included in N-body codes in order to take into account the modifications to the expansion rate, growth of structures, and strength of gravity.
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Spergel, D. N., Verde, L., Peiris, H. V., Komatsu, E., Nolta, M. R., Bennett, C. L., Halpern, M., Hinshaw, G., Jarosik, N., Kogut, A., et al. (2003) · The Astrophysical Journal Supplement Series · doi:10.1086/377226 · Cited by 10,976
Three‐Year Wilkinson Microwave Anisotropy Probe ( WMAP ) Observations: Implications for Cosmology
Spergel, D. N., Bean, R., Dore, O., Nolta, M. R., Bennett, C. L., Dunkley, J., Hinshaw, G., Jarosik, N., Komatsu, E., Page, L., et al. (2007) · The Astrophysical Journal Supplement Series · doi:10.1086/513700 · Cited by 6,778
A test of general relativity using radio links with the Cassini spacecraft
Bertotti, B., Iess, L., & Tortora, P. (2003) · Nature · doi:10.1038/nature01997 · Cited by 2,017
Cosmological scaling solutions of nonminimally coupled scalar fields
Uzan, J.-P. (1999) · Physical Review D · doi:10.1103/physrevd.59.123510 · Cited by 468
Cosmological observations in scalar-tensor quintessence
Riazuelo, A., & Uzan, J.-P. (2002) · Physical Review D · doi:10.1103/physrevd.66.023525 · Cited by 227
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Metadata
- Authors
- Pettorino, V., & Baccigalupi, C.
- Venue
- Physical Review D
- Publisher
- American Physical Society (APS)
- Published
- 2008-05-14
- Volume
- 77
- Issue
- 10
- ISSN
- 0556-2821 (ISSN-L)
- 1550-7998
- 1550-2368
- OpenAlex
- W2093519520
- Cited by
- 180
- References
- 5
- FWCI
- 7.27
- Type
- journal article
- Language
- en
- Open access
- green
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