f(Q)引力与仿射EoS：兼容性及观测限制
The $f(Q)$ gravity and affine EoS: Compatibility and observational constraints
AI总结：
本文研究了在广义相对论和f(Q)引力框架下，满足仿射方程状态方程的宇宙模型，探讨其兼容性及观测限制。
摘要：
我们研究了在广义相对论和f(Q)引力框架下，满足仿射方程状态方程（EoS）的等离子体的宇宙学影响。我们描述了仿射EoS对模型中宇宙演化的冲击，并推导了对模型参数的观测限制。广义相对论和f(Q)引力模型可能统一了宇宙从减速膨胀过渡到加速膨胀的场景。模型参数通过基于χ²最小化技术的贝叶斯分析，利用宇宙钟和Ia型超新星的观测数据进行约束。在广义相对论中，仿射EoS模型具有类似暗能量的效应，而在f(Q)引力中则具有类似暗能量的效应。当前宇宙参数的现值以及宇宙的当前年龄与观测结果相容。我们还探讨了将广义相对论模型的解设置为f(Q)引力的可能性。
英文摘要：
We study the cosmological implications of barotropic fluid satisfying affine equation of state (EoS) in the General relativity and $f(Q)$ gravity framework. We describe the impact of affine EoS on the cosmic evolution in the model and derive the observational constraints on the model parameters. The models of General relativity and $f(Q)$ gravity may unify the scenario in which the universe transits from the decelerated expansion into the accelerated expansion. The model parameters are constrained by the Bayesian analysis based on $χ^{2}$ minimization technique with the observational data of the Cosmic chronometer and Supernovae type Ia. The affine EoS model in the General Relativity possess quintessence kind of dark energy while it possess phantom kind of dark energy in the $f(Q)$ gravity. The present day values of the cosmological parameters along with the current age of the universe are compatible with the observations. We also probe the possibility of setting up the solution of General relativity model into the $f(Q)$ gravity.
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