Matter bounce cosmology within Finsler-Randers geometry: A comprehensive study of anisotropic influences

被引:1
作者
Praveen, J. [1 ]
Narasimhamurthy, S. K. [1 ]
机构
[1] Kuvempu Univ, Dept PG Studies & Res Math, Shanakraghatta 577451, Shivamogga, India
关键词
Finsler geometry; Matter bouncing cosmology; Barthel connection; Randers spaces; Cosmology; PROBE WMAP OBSERVATIONS; ELECTROMAGNETIC-FIELD; COMPLEXITY; UNIVERSE;
D O I
10.1016/j.jheap.2024.10.009
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
In this study, we explore the dynamics of matter bounce cosmology within the framework of Finsler-Randers geometry, focusing on the role of the Finslerian correction term (t). . By integrating Finsler geometry into cosmological models, we introduce anisotropic effects that significantly impact the evolution of the universe, particularly during the bounce phase. The research examines various cosmological parameters, including the deceleration ( q (t) ), jerk ( j (t) ), and snap ( s (t) ) parameters, highlighting the influence of the Finsler correction on these key indicators. Our results demonstrate that the Finslerian framework leads to more complex and abrupt transitions in the universe's expansion dynamics compared to traditional Riemannian models. The study also reveals that the Finslerian correction intensifies the violations of energy conditions, such as the null energy condition (NEC), which are crucial for the occurrence of a successful bounce. Furthermore, the analysis of the squared sound speed v2 2 s indicates that the model's stability is highly sensitive to the choice of the Finslerian parameters, with certain configurations leading to instability during the bounce. Our findings underscore the unique contributions of Finsler geometry to cosmological models, offering deeper insights into the behavior of the universe under anisotropic influences and providing a potential avenue for addressing longstanding challenges in cosmology.
引用
收藏
页码:300 / 314
页数:15
相关论文
共 44 条
[21]   THE POINT FINSLER-SPACES AND THEIR PHYSICAL APPLICATIONS IN ELECTRON OPTICS AND THERMODYNAMICS [J].
INGARDEN, RS ;
TAMASSY, L .
MATHEMATICAL AND COMPUTER MODELLING, 1994, 20 (4-5) :93-107
[22]   Covariant kinematics and gravitational bounce in Finsler space-times [J].
Kouretsis, A. P. ;
Stathakopoulos, M. ;
Stavrinos, P. C. .
PHYSICAL REVIEW D, 2012, 86 (12)
[23]   General very special relativity in Finsler cosmology [J].
Kouretsis, A. P. ;
Stathakopoulos, M. ;
Stavrinos, P. C. .
PHYSICAL REVIEW D, 2009, 79 (10)
[24]   Finsler geometry as a model for relativistic gravity [J].
Laemmerzahl, Claus ;
Perlick, Volker .
INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS, 2018, 15
[26]  
Matsumoto M., 1992, Reports on Mathematical Physics, V31, P43, DOI 10.1016/0034-4877(92)90005-L
[27]   Finsler spacetime geometry in physics [J].
Pfeifer, Christian .
INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS, 2019, 16
[28]   Finsler geometric extension of Einstein gravity [J].
Pfeifer, Christian ;
Wohlfarth, Mattias N. R. .
PHYSICAL REVIEW D, 2012, 85 (06)
[29]   Causal structure and electrodynamics on Finsler spacetimes [J].
Pfeifer, Christian ;
Wohlfarth, Mattias N. R. .
PHYSICAL REVIEW D, 2011, 84 (04)
[30]   Exploring compact stellar structures in Finsler-Randers geometry with the Barthel connection [J].
Praveen, J. ;
Narasimhamurthy, S. K. ;
Yashwanth, B. R. .
EUROPEAN PHYSICAL JOURNAL C, 2024, 84 (06)