In exploring the dynamics of the Universe, modified gravity theories offer an alternative explanation for dark energy. Although the ΛCDM model has served as a foundational description for understanding the Universe, it also has its limitations. Our primary objective in this study is to overcome these shortcomings and reconstruct the ΛCDM Universe. We aim to achieve this by embedding the ΛCDM scenario within a modified gravity framework. Here, the investigation is conducted within the framework of novel non-minimal coupling of f(Q) gravity. A generic non-minimal form is considered, expressed in terms of two arbitrary functions f1(Q) and f2(Q). Analytic solutions are derived to mimic the ΛCDM paradigm. Finally, through cosmographic analysis, the models are validated against observational results.

中文翻译：

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将 ΛCDM 框架嵌入具有物质耦合的非最小 f(Q) 引力中


在探索宇宙动力学时，修正的引力理论为暗能量提供了另一种解释。尽管ΛCDM模型已成为理解宇宙的基础描述，但它也有其局限性。我们这项研究的主要目标是克服这些缺点并重建ΛCDM宇宙。我们的目标是通过将 ΛCDM 场景嵌入到修改后的重力框架中来实现这一目标。在这里，研究是在 f(Q) 引力的新型非最小耦合框架内进行的。考虑用两个任意函数 f1(Q) 和 f2(Q) 表示的通用非最小形式。分析解决方案是为了模仿ΛCDM 范式而派生的。最后，通过宇宙学分析，根据观测结果验证模型。