论文标题
Myrzakulov重力的动态系统分析
Dynamical system analysis of Myrzakulov gravity
论文作者
论文摘要
我们对Myrzakulov或F（r，t）重力进行动态系统分析，该分析是相互连接的度量理论的一个子类，其中一个人使用特定但非特殊的连接，允许同时进行非零的曲率和扭转。我们考虑两类的模型，我们提取关键点，并在其物理特征以及它们的稳定性属性上检查其稳定性。在拥有λCDM宇宙学作为极限的1类模型中，我们发现了物质和暗能量时代的顺序，并且我们表明宇宙将导致黑暗能源主导的临界点，黑暗能量像宇宙学常数一样。关于黑暗能量方程式参数，我们发现它根据模型参数的值在于典型或幻影制度。对于第二类模型，我们再次发现黑暗能源占主导地位的保姆延迟吸引子，尽管该场景不具有λCDM宇宙学作为极限。宇宙学的行为更丰富，黑暗能源可以像典型一样，像幻影一样，也可以体验进化过程中的幻象界穿越。
We perform a dynamical system analysis of Myrzakulov or F(R, T) gravity, which is a subclass of affinely connected metric theories, where ones uses a specific but non-special connection, which allows for non-zero curvature and torsion simultaneously. We consider two classes of models, we extract the critical points, and we examine their stability properties alongside their physical features. In the Class 1 models, which possess ΛCDM cosmology as a limit, we find the sequence of matter and dark energy eras, and we show that the Universe will result in a dark-energy dominated critical point for which dark energy behaves like a cosmological constant. Concerning the dark-energy equation-of-state parameter we find that it lies in the quintessence or phantom regime, according to the value of the model parameter. For the Class 2 models, we again find the dark-energy dominated, de Sitter late-time attractor, although the scenario does not possess ΛCDM cosmology as a limit. The cosmological behavior is richer, and the dark-energy sector can be quintessence-like, phantom-like, or experience the phantom-divide crossing during the evolution.
