The dynamics of matter bounce cosmology in Weyl-type f (Q, T) gravity

被引:9
作者
Zhadyranova, A. [1 ]
Koussour, M. [2 ]
Bekkhozhayev, S. [1 ]
机构
[1] LN Gumilyov Eurasian Natl Univ, Astana 010008, Kazakhstan
[2] Univ Hassan II Casablanca, Dept Phys, Casablanca, Morocco
关键词
Bouncing cosmology; Weyl-type f (Q; T); gravity; Energy conditions; Stability analysis; ACCELERATING UNIVERSE; CONSTRAINTS; MODELS;
D O I
10.1016/j.cjph.2024.04.023
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
In this work, we investigate the dynamics of bouncing cosmologies within the framework of Weyl-type f(Q, T) gravity. Here, Q represents the non-metricity of the space-time, is determined by the vector field w , while T represents the trace of the matter energy-momentum tensor. Our objective is to explore the feasibility of avoiding the Big Bang singularity by implementing a matter-bounce cosmology. To achieve this, we consider a specific model with the functional form f(Q, T) = aQ+ + /i 6 2 T , where a and /i are model parameters. We analyze the dynamical parameters associated with this model and examine the influence of the Weyl-type f(Q, T) theory on these parameters. Moreover, we assess the stability of the proposed model to ensure its viability as a cosmological scenario. Through our analysis, we aim to gain insights into the potential implications and consequences of Weyl-type f(Q, T) gravity for bouncing scenarios, contributing to our understanding of alternative gravitational theories in the context of cosmology.
引用
收藏
页码:1483 / 1492
页数:10
相关论文
共 57 条
  • [51] Bouncing solutions in f(T) gravity
    Skugoreva, Maria A.
    Toporensky, Alexey, V
    [J]. EUROPEAN PHYSICAL JOURNAL C, 2020, 80 (11):
  • [52] Static spherically symmetric wormholes in f(Q,T) gravity
    Tayde, Moreshwar
    Hassan, Zinnat
    Sahoo, P. K.
    Gutti, Sashideep
    [J]. CHINESE PHYSICS C, 2022, 46 (11)
  • [53] Bouncing universe models in an extended gravity theory
    Tripathy, S. K.
    Mishra, B.
    Ray, Saibal
    Sengupta, Rikpratik
    [J]. CHINESE JOURNAL OF PHYSICS, 2021, 71 : 610 - 622
  • [54] Accelerating universe in a big bounce model
    Wang, BL
    Liu, HY
    Xu, LX
    [J]. MODERN PHYSICS LETTERS A, 2004, 19 (06) : 449 - 456
  • [55] Weyl H, 1918, SITZBER K PREUSS AKA, P465
  • [56] Weyl type f(Q, T) gravity, and its cosmological implications
    Xu, Yixin
    Harko, Tiberiu
    Shahidi, Shahab
    Liang, Shi-Dong
    [J]. EUROPEAN PHYSICAL JOURNAL C, 2020, 80 (05):
  • [57] Geodesic deviation, Raychaudhuri equation, Newtonian limit, and tidal forces in Weyl-type f(Q, T) gravity
    Yang, Jin-Zhao
    Shahidi, Shahab
    Harko, Tiberiu
    Liang, Shi-Dong
    [J]. EUROPEAN PHYSICAL JOURNAL C, 2021, 81 (02):