论文标题
限制$ f（q，t）$从能源条件下的重力
Constraining $f(Q,T)$ gravity from energy conditions
论文作者
论文摘要
我们生活在黄金时代，从事实验宇宙学。具有高精度精度的新实验用于限制几种重力理论的建议，因为它从未做过。但是，在理论角度限制重力的新理论的重要作用是能量条件。在整个工作中，我们仔细限制了使用不同的能量条件的两个不同家族的$ f（q，t）$重力的一些自由参数。这种重力理论通过非金属标量函数$ q $结合了引力效应，以及经典理论中宇宙量子时代的表现（由于存在能量巨头张量$ t $的痕迹）。我们的调查揭示了$ f（q，t）$重力的可行性，以描述我们宇宙通过的加速扩张。此外，我们的一个模型自然提供了用于黑暗能量的幻影制度，并满足了主要的能量条件。这里的结果得出了$ f（q，t）$的可行性，这是一个有希望的完全重力理论，为宇宙黑暗扇区的描述提供了新的道路。
We are living in a golden age for experimental cosmology. New experiments with high accuracy precision are been used to constrain proposals of several theories of gravity, as it has been never done before. However, important roles to constrain new theories of gravity in a theoretical perspective are the energy conditions. Throughout this work, we carefully constrained some free parameters of two different families of $f(Q,T)$ gravity using different energy conditions. This theory of gravity combines the gravitation effects through the non-metricity scalar function $Q$, and manifestations from the quantum era of the Universe in the classical theory (due to the presence of the trace of the energy-momentum tensor $T$). Our investigation unveils the viability of $f(Q,T)$ gravity to describe the accelerated expansion our Universe passes through. Besides, one of our models naturally provides a phantom regime for dark energy and satisfies the dominant energy condition. The results here derived strength the viability of $f(Q,T)$ as a promising complete theory of gravity, lighting a new path towards the description of the dark sector of the Universe.
