Dynamical system analysis in descending dark energy model

Autor:	Shahalam, M., Ayoub, Sania, Avlani, Prakarshi, Myrzakulov, R.
Rok vydání:	2024
Předmět:	General Relativity and Quantum Cosmology
Druh dokumentu:	Working Paper
Popis:	In this paper, we study the dynamical system analysis for a recently proposed decaying dark energy model, namely, Q-SC-CDM. First we investigate the stationary points to find the stable attractor solution under the conditions discussed recently in the literature. In this case, we do not find any stable attractor solution. Therefore, we avoid the parameter space of Q-SC-CDM model discussed in arXiv:2201.07704. Second, we make different choice for the model parameters and re-investigate the stationary points and their stability. Our analysis shows that a simple choice of model parameters allows to capture a stable attractor solution. Moreover, we obtain phase portrait where all trajectories move towards the stable attractor point. Comment: 7 pages and 1 figure
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2402.01270 Zobrazit plný text záznamu View this record from Arxiv