Using cosmographic energy conditions to constrain f(R, T) gravity models

被引:2
作者
Farias, I. S. [1 ]
Moraes, P. H. R. S. [2 ]
机构
[1] Inst Tecnol Aeronaut, Ctr Tecn Aerosp, Dept Fis, BR-12228900 Sao Jose Dos Campos, SP, Brazil
[2] Univ Fed ABC, Ctr Ciencias Nat & Humanas, Ave Estados 5001, BR-09210580 Santo Andre, SP, Brazil
关键词
TRAVERSABLE WORMHOLES; COSMOLOGICAL MODELS; F R; TRAVEL; UNIVERSE; QUINTESSENCE; SPACETIME;
D O I
10.1140/epjp/s13360-023-04066-2
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Accelerated cosmic expansion posed enormous challenges to the standard cosmological ACDM model. In an attempt to solve these challenges, many alternative models have been proposed. The problem that arises is that many of these alternative scenarios lead to the same results, giving rise to a degeneracy among them. Cosmography has become one of the main model independent tools to try to break this degeneracy. In the present paper, the well-known energy conditions will be used together with cosmography in order to place restrictions on f (R, T) = f (R) + f (T) gravity models, where R is the Ricci scalar and T is the trace of the energy-momentum tensor. Our results, together with the observational values of the parameters involved, showed that the quintessence models are preferred as the dark energy model for such a theory.
引用
收藏
页数:15
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