Inflationary cosmology in f (R, T) modified gravity

被引：16
作者：
Baffou, E. H. [1 ,3 ]
Houndjo, M. J. S. [1 ,3 ]
Salako, I. G. [2 ,3 ]
Houngue, T. [3 ]
机构：
[1] Fac Sci & Tech Natitingou, BP 72, Natitingou, Benin
[2] Ecole Genie Rural EGR, 01BP 55, Ketou, Benin
[3] Inst Math & Sci Phys, 01 BP 613, Porto Novo, Benin
来源：
ANNALS OF PHYSICS | 2021年 / 434卷
关键词：
Inflation; Dark energy; Slow-roll inflation; DARK ENERGY; DYNAMICS; MODELS;
D O I：
10.1016/j.aop.2021.168620
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In this paper, we investigate the cosmological inflation scenario in the context of f (R, T) theory of gravity, where f is a generic function of the curvature scalar R and the trace T of the energy momentum tensor. Assuming that the slow roll inflation conditions hold true in f (R, T) gravity, we obtain from the Hubble slow roll parameters, the various inflation-related observables such as the tensor-to-scalar ratio r, the scalar spectral index ns, the running alpha s of the spectral index and the tensor spectral nT for two specific f (R, T) models. To see the viability of these models, a numerical analysis of such parameters has been done. The results show that by using the various values of free parameters it is possible to obtain a viable compatibility with the observational data. (c) 2021 Published by Elsevier Inc.
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页数：12
相关论文
共 59 条
  • [1] Consistent modified gravity: dark energy, acceleration and the absence of cosmic doomsday
    Abdalla, MCB
    Nojiri, S
    Odintsov, SD
    [J]. CLASSICAL AND QUANTUM GRAVITY, 2005, 22 (05) : L35 - L42
  • [2] Planck 2015 results XX. Constraints on inflation
    Ade, P. A. R.
    Aghanim, N.
    Arnaud, M.
    Arroja, F.
    Ashdown, M.
    Aumont, J.
    Baccigalupi, C.
    Ballardini, M.
    Banday, A. J.
    Barreiro, R. B.
    Bartolo, N.
    Battaner, E.
    Benabed, K.
    Benoit, A.
    Benoit-Levy, A.
    Bernard, J. -P.
    Bersanelli, M.
    Bielewicz, P.
    Bock, J. J.
    Bonaldi, A.
    Bonavera, L.
    Bondi, J. R.
    Borrillu, J.
    Bouchet, F. R.
    Boulanger, F.
    Bucher, M.
    Burigana, C.
    Butler, R. C.
    Calabrese, E.
    Cardoso, J. -F.
    Catalano, A.
    Challinor, A.
    Chamballu, A.
    Chary, R. -R.
    Chiang, H. C.
    Christensen, P. R.
    Churchl, S.
    Clements, D. L.
    Colombi, S.
    Colombo, L. P. L.
    Combet, C.
    Contreras, D.
    Couchot, F.
    Coulais, A.
    Crill, B. P.
    Curto, A.
    Cuttaia, F.
    Danese, L.
    Davies, R. D.
    Davis, R. J.
    [J]. ASTRONOMY & ASTROPHYSICS, 2016, 594
  • [3] Improved Constraints on Cosmology and Foregrounds from BICEP2 and Keck Array Cosmic Microwave Background Data with Inclusion of 95 GHz Band
    Ade, P. A. R.
    Ahmed, Z.
    Aikin, R. W.
    Alexander, K. D.
    Barkats, D.
    Benton, S. J.
    Bischoff, C. A.
    Bock, J. J.
    Bowens-Rubin, R.
    Brevik, J. A.
    Buder, I.
    Bullock, E.
    Buza, V.
    Connors, J.
    Crill, B. P.
    Duband, L.
    Dvorkin, C.
    Filippini, J. P.
    Fliescher, S.
    Grayson, J.
    Halpern, M.
    Harrison, S.
    Hilton, G. C.
    Hui, H.
    Irwin, K. D.
    Karkare, K. S.
    Karpel, E.
    Kaufman, J. P.
    Keating, B. G.
    Kefeli, S.
    Kernasovskiy, S. A.
    Kovac, J. M.
    Kuo, C. L.
    Leitch, E. M.
    Lueker, M.
    Megerian, K. G.
    Netterfield, C. B.
    Nguyen, H. T.
    O'Brient, R.
    Ogburn, R. W.
    Orlando, A.
    Pryke, C.
    Richter, S.
    Schwarz, R.
    Sheehy, C. D.
    Staniszewski, Z. K.
    Steinbach, B.
    Sudiwala, R. V.
    Teply, G. P.
    Thompson, K. L.
    [J]. PHYSICAL REVIEW LETTERS, 2016, 116 (03)
  • [4] Alvarenga F.G., 2013, J. Mod. Phys., V4, P130, DOI [10.4236/jmp.2013.41019, DOI 10.4236/JMP.2013.41019]
  • [5] Alves M. E. S., ARXIV160403874
  • [6] f(R,T) models applied to baryogenesis
    Baffou, E. H.
    Houndjo, M. J. S.
    Kanfon, D. A.
    Salako, I. G.
    [J]. EUROPEAN PHYSICAL JOURNAL C, 2019, 79 (02):
  • [7] Geodesic deviation equation in f (R, T) gravity
    Baffou, E. H.
    Houndjo, M. J. S.
    Rodrigues, M. E.
    Kpadonou, A. V.
    Tossa, J.
    [J]. CHINESE JOURNAL OF PHYSICS, 2017, 55 (02) : 467 - 477
  • [8] Viscous generalized Chaplygin gas interacting with f(R, T) gravity
    Baffou, E. H.
    Houndjo, M. J. S.
    Salako, I. G.
    [J]. INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS, 2017, 14 (04)
  • [9] Baffou E. H., 2014, Space Sci., V355, P2197
  • [10] Bamba K., ARXIV13085789
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