The DOI matches its Crossref record; 94 of the 94 references it cites were found in a registry or an index.
f(T,𝒯) gravity and cosmology
Open accessAbstract
We present an extension of f ( T ) gravity, allowing for a general coupling of the torsion scalar T with the trace of the matter energy-momentum tensor 𝒯. The resulting f ( T ,𝒯) theory is a new modified gravity, since it is different from all the existing torsion or curvature based constructions. Applied to a cosmological framework, it leads to interesting phenomenology. In particular, one can obtain a unified description of the initial inflationary phase, the subsequent non-accelerating, matter-dominated expansion, and then the transition to a late-time accelerating phase. Additionally, the effective dark energy sector can be quintessence or phantom-like, or exhibit the phantom-divide crossing during the evolution. Moreover, in the far future the universe results either to a de Sitter exponential expansion, or to eternal power-law accelerated expansions. Finally, a detailed study of the scalar perturbations at the linear level reveals that f ( T ,𝒯) cosmology can be free of ghosts and instabilities for a wide class of ansatzes and model parameters.
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Self-citationSecond-order scalar-tensor field equations in a four-dimensional space
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Improved cosmological constraints from a joint analysis of the SDSS-II and SNLS supernova samples
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Detection ofB-Mode Polarization at Degree Angular Scales by BICEP2
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Cited by
Teleparallel gravity: from theory to cosmology
Bahamonde, S., Dialektopoulos, K. F., Escamilla-Rivera, C., Farrugia, G., Gakis, V., Hendry, M., Hohmann, M., Levi Said, J., Mifsud, J., & Di Valentino, E. (2023) · Reports on Progress in Physics · doi:10.1088/1361-6633/ac9cef · Cited by 503
Xu, Y., Li, G., Harko, T., & Liang, S.-D. (2019) · The European Physical Journal C · doi:10.1140/epjc/s10052-019-7207-4 · Cited by 428
Self-citationTeleparallel theories of gravity: illuminating a fully invariant approach
Krššák, M., van den Hoogen, R. J., Pereira, J. G., Böhmer, C. G., & Coley, A. A. (2019) · Classical and Quantum Gravity · doi:10.1088/1361-6382/ab2e1f · Cited by 346
Di Valentino, E., Said, J. L., Riess, A., Pollo, A., Poulin, V., Gómez-Valent, A., Weltman, A., Palmese, A., Huang, C. D., Bruck, C. V. D., et al. (2025) · Physics of the Dark Universe · doi:10.1016/j.dark.2025.101965 · Cited by 319
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Metadata
- Authors
- Harko, T., Lobo, F. S. N., Otalora, G., & Saridakis, E. N.
- Venue
- Journal of Cosmology and Astroparticle Physics
- Publisher
- IOP Publishing
- Published
- 2014-12-11
- Volume
- 2014
- Issue
- 12
- Pages
- 021-021
- ISSN
- 1475-7508 (ISSN-L)
- 1475-7516
- OpenAlex
- W1541738557
- Cited by
- 303
- References
- 94
- FWCI
- 6.91
- Type
- journal article
- Language
- en
- Open access
- green
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