Open AccessThe effective dark energy in brane universe
Author(s) -
B. J. Bansawang,
M N Gazali Yunus,
Azwar Sutiono,
Tasrief Surungan
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1354/1/012008
Subject(s) - physics , dark energy , brane , scale factor (cosmology) , cosmology , friedmann–lemaître–robertson–walker metric , de sitter universe , universe , big rip , metric expansion of space , equation of state , theoretical physics , dark fluid , astrophysics , quantum mechanics
We study the dynamical system of braneworld cosmology with the effective cosmological constant as the effective dark energy on brane universe. Firstly we introduce several scenarios of braneworld model then derive the effective EFE on the brane which reduced at low energy limit. Next, we discuss the FRW cosmological model in braneworld scenario considered in static and non-closed system. In the dynamical study of cosmology, we assume the equation of state of dark energy varies with time and can be parameterized as a function of scale factor of the universe. Using the dynamical system approach, we describe the evolution of brane universe with non-vanishing NCC/BCC term. In this study, we investigate the effects of the presence of NCC/BCC perturbations in brane universe. Finally, we discuss the NCC/BCC perturbations in the late-time cosmic acceleration when the dark energy contribution is Ω Λ ≃ 0.72.