论文标题
FRW Universe中相互作用的鲜空气分析和相互作用的热力学
Phase Space Analysis and Thermodynamics of Interacting Umami Chaplygin gas in FRW Universe
论文作者
论文摘要
在这项工作中，已经在其热力学和动力学行为的背景下研究了在宇宙平坦的FRW模型中进行了相互作用的Chaplygin气体。特别是，将鲜液视为与暗物质相互作用的暗能量，在两种单独的情况下，已经研究了不可逆的热力学的明显和事件范围。此外，该模型也通过将宇宙进化方程转换为普通微分方程的自主系统，在动态系统分析的权限中进行了研究。有了一些对模型参数$ω$和耦合参数$λ$的限制，一些宇宙学上有趣的关键要点描述了宇宙常数和加速缩放吸引子在Quintessence ERA吸引的较晚时间加速的演变，从而减轻了巧合问题。
In this work interacting Umami Chaplygin gas has been studied in flat FRW model of universe in context of it's thermodynamic and dynamical behaviour. In particular, considering Umami fluid as dark energy interacting with dark matter, irreversible thermodynamics has been studied both for apparent and event horizon as bounding horizon in two separate cases. Also the model has been investigated in purview of dynamical systems analysis by converting the cosmological evolution equations to an autonomous system of ordinary differential equations. With some restrictions on model parameter $ω$ and coupling parameter $λ$, some cosmologically interesting critical points describing late time accelerated evolution of the universe attracted by cosmological constant and accelerated scaling attractor in quintessence era have been found to alleviate coincidence problem.
