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f(T) gravity mimicking dynamical dark energy. Background and perturbation analysis
Open accessAbstract
We investigate f ( T ) cosmology in both the background, as well as in the perturbation level, and we present the general formalism for reconstructing the equivalent one-parameter family of f ( T ) models for any given dynamical dark energy scenario. Despite the completely indistinguishable background behavior, the perturbations break this degeneracy and the growth histories of all these models differ from one another. As an application we reconstruct the f ( T ) equivalent for quintessence, and we show that the deviation of the matter overdensity evolution is strong for small scales and weak for large scales, while it is negligible for large redshifts.
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Cites
Cosmological consequences of a rolling homogeneous scalar field
Ratra, B., & Peebles, P. J. E. (1988) · Physical Review D · doi:10.1103/physrevd.37.3406 · Cited by 4,310
THE CASE FOR A POSITIVE COSMOLOGICAL Λ-TERM
SAHNI, V., & STAROBINSKY, A. (2000) · International Journal of Modern Physics D · doi:10.1142/s0218271800000542 · Cited by 2,767
Exponential potentials and cosmological scaling solutions
Copeland, E. J., Liddle, A. R., & Wands, D. (1998) · Physical Review D · doi:10.1103/physrevd.57.4686 · Cited by 1,468
Cosmological perturbations in Hořava-Lifshitz gravity
Gao, X., Wang, Y., Brandenberger, R., & Riotto, A. (2010) · Physical Review D · doi:10.1103/physrevd.81.083508 · Cited by 110
Cited by
Modified gravity theories on a nutshell: Inflation, bounce and late-time evolution
Nojiri, S., Odintsov, S. D., & Oikonomou, V. K. (2017) · Physics Reports · doi:10.1016/j.physrep.2017.06.001 · Cited by 2,734
Metadata
- Authors
- Dent, J. B., Dutta, S., & Saridakis, E. N.
- Venue
- Journal of Cosmology and Astroparticle Physics
- Publisher
- IOP Publishing
- Published
- 2011-01-12
- Volume
- 2011
- Issue
- 01
- Pages
- 009-009
- ISSN
- 1475-7508 (ISSN-L)
- 1475-7516
- OpenAlex
- W2035651747
- Cited by
- 336
- References
- 4
- FWCI
- 14.00
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Dent, J. B., Dutta, S., & Saridakis, E. N. (2011). f(T) gravity mimicking dynamical dark energy. Background and perturbation analysis. Journal of Cosmology and Astroparticle Physics. https://doi.org/10.1088/1475-7516/2011/01/009
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